What is the difference between the predator-prey relationship and the
parasite-host relationship
Answers
Answer: In a predator prey relationship, the predator kills and eats the prey. In a parasite/ host relationship, the parisite is feeding off the host, without killing it. If the host dies, the parasite will as well.
Explanation:
I hope that makes sense XD good luck
Related Questions
a. Plants use CO2 in the process of ___________________ to make___________ and oxygen. b. Animals use oxygen in the process of _______________ and make more CO2. c. The ____________________________ is the main regulator of CO2 in the atmosphere because CO2 dissolves easily in it. d. In the past, huge deposits of carbon were stored as dead plants and animals ______________________. e. Today these deposits are burned as fossil fuels, which include ____________________, _____________________, and ___________________________. f. More CO2 is released in the atmosphere today than in the past because of the _________________________ . g. Too much CO2 in the atmosphere may be responsible for the _________________________________ effect/global warming.
Answers
a. Plants use CO2 in the process of photosynthesis to make glucose (sugar) and oxygen.
b. Animals use oxygen in the process of cellular respiration and make more CO2.
c. The oceans are the main regulator of CO2 in the atmosphere because CO2 dissolves easily in them.
d. In the past, huge deposits of carbon were stored as dead plants and animals in the form of fossil fuels.
e. Today these deposits are burned as fossil fuels, which include coal, oil, and natural gas.
f. More CO2 is released into the atmosphere today than in the past because of human activities, such as burning fossil fuels and deforestation.
g. Too much CO2 in the atmosphere may be responsible for the greenhouse effect/global warming,
where increased concentrations of greenhouse gases trap heat and lead to rising temperatures on Earth.
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A small number of bacterial species have a preponderance of positive charges on the outside of their cells. How would the bacteria if they were stained with crystal violet?
Select one:
a.Purple bacteria on a clear background
b.Transparent bacteria on purple background
c.Purple bacteria on a purple background
d.Transparent bacteria on a clear background
Answers
A small number of bacterial species having a preponderance of positive charges on outside of their cells. If these bacteria were stained with crystal violet, the bacteria would appear purple on a purple background. Option C is correct.
This is because crystal violet is a basic dye that stains the negatively charged components of bacterial cells, such as the peptidoglycan layer in the cell wall. Bacteria with a preponderance of positive charges on the outside of their cells would still be able to retain the crystal violet stain and appear purple under a microscope.
The purple background is due to the counterstain, such as safranin, used to visualize the bacteria after staining with crystal violet. The counterstain helps to distinguish between different bacterial species based on their cellular morphology and staining characteristics.
Hence, C. Purple bacteria on a purple background is the correct option.
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HELP ASAP! I WILL GIVE 50 POINTS AND BRAINLIEST
Phenotypic similarity does not always reflect evolutionary relationships due to:
Check all that apply
Are the answers B and C?
A) variation in rates of evolutionary change among species
B) homoplasy
C) convergent evolution
D) outgrouping
Answers
Which of the following describes a positive feedback loop?
O When blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.
O When the body senses that the heart rate is very high, it secretes hormones that decrease the heart rate.
O When blood sugar concentration is too high, the endocrine system secretes hormones that decrease blood sugar concentration to a normal level.
O When someone is exercising intensely, the body secretes hormones that increase oxygen supply for cellular respiration.
Answers
Answer:
the answer is A when blood sugar contraction is to low
Explanation:
i took the test
The statement that describes a positive feedback loop is as follows: when blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.
What is positive feedback loop?A positive feedback loop is a feedback loop that occurs in nature when the product of a reaction leads to an increase in that reaction.
A negative feedback loop, on the other hand, occurs when increased output from the system inhibits future production by the system.
Therefore, the statement that describes a positive feedback loop is as follows: when blood sugar concentration is too low, the endocrine system secretes hormones that increase blood sugar concentration to a normal level.
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Choose the types of alternative splicing patterns with the correct description of how they lead to the production of different protein isoforms. Select the three correct statements.
a)Alternative splice sites within an exon−different versions of an exon exist that allow for the presence of different domains in the protein.
b)Mutually exclusive exons−certain sequences are either included or excluded, which allows generation of proteins with different sequences.
c)Cassette exons−whole exons are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
d)Alternative promoters−produce messages with different 5′ exons and proteins with different N-terminal ends.
e)Intron retention−introns are included in the mature mRNAs, which can be used only to produce novel isoforms of the protein.
f)Alternative polyadenylation−produces messages with different 3′ coding sequences as well as different 3′ untranslated regions, which can be important in regulatory events.
Answers
Alternative splicing patterns refer to the various ways in which exons and introns are combined to create different protein isoforms from a single gene. There are several types of alternative splicing patterns, but only three are correct in relation to how they lead to the production of different protein isoforms. These include:
a) Alternative splice sites within an exon: This type of alternative splicing pattern involves different versions of an exon that exist, allowing for the presence of different domains in the protein.
b) Mutually exclusive exons: In this pattern, certain sequences are either included or excluded, which allows the generation of proteins with different sequences.
c) Cassette exons: This pattern involves whole exons that are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
By utilizing these alternative splicing patterns, genes can produce a wide range of protein isoforms with varying functions.
Your answer: The three correct statements about alternative splicing patterns that lead to the production of different protein isoforms are:
b) Mutually exclusive exons - Certain sequences are either included or excluded, which allows the generation of proteins with different sequences.
c) Cassette exons - Whole exons are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
d) Alternative promoters - Produce messages with different 5′ exons and proteins with different N-terminal ends.
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Which of the following phenotypes are regulated through autocleavage of Cro in response to activated RecA? Question 19 options: Bacteriocin production in Lactobacillus None of the above Transcription of rpoD Light production in Vibrio fischeri MIGHT HAVE MORE THAN ONE ANSWER
Answers
The phenotype regulated through autocleavage of Cro in response to activated RecA is bacteriocin production in Lactobacillus.
Among the given options, bacteriocin production in Lactobacillus is regulated through autocleavage of Cro in response to activated RecA. Bacteriocins are antimicrobial peptides produced by bacteria to inhibit the growth of closely related or competing bacterial strains. Lactobacillus is a genus of bacteria known for its probiotic properties and is commonly found in the gastrointestinal tract.
The autocleavage of Cro is a regulatory mechanism that occurs in response to DNA damage or stress. Cro is a repressor protein that binds to specific DNA sequences and inhibits the transcription of target genes. However, when RecA is activated in response to DNA damage, it promotes the autocleavage of Cro. This cleavage releases the repression, allowing the transcription of genes involved in bacteriocin production.
By regulating bacteriocin production, Lactobacillus can inhibit the growth of potential pathogens, thus providing a competitive advantage in its ecological niche. Bacteriocins are important in maintaining the microbial balance in the gut and protecting against colonization by harmful bacteria.
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A girl is born with hemophilia. Her dad also has hemophilia, but her mother does not.
What genetic explanation can you provide as to why the girl
suffers from hemophilia?
Answers
answer:
So daughters get 2 X chromosomes from the mom and dad and if the dad has hemophilia the daughter would get it too and sons would not get because they get Y chromosome from their dad and hemophilia is found in the X chromosome because the X chromosome is the one that has the instructions for making the clotting factor proteins.
Explanation:
A father who has hemophilia has the gene and passes it on to his daughter because daughters get two X chromosomes, one from their mother and the other from their father. This is why daughters of men with hemophilia are called obligate carriers. Since sons only receive a Y chromosome from their father, they would not have inherited hemophilia.
Hope this make sense!
What happens when molecules lose energy?
Answers
Answer:
Condensation occurs,motion slows down so that it's cohesive force pulls the molecules close but still it have enough energy to break away from one to connect with other molecule and have constant movement
Which type of contraction involves holding muscles still in a particular position?.
Answers
Answer:
isometric contraction
Explanation:
Isometric contraction is the type of contraction that involves holding muscles still in a particular position.
Which of the following statements is correct?
DNA reads and translates the RNA code.
DNA synthesizes protein.
RNA reads and translates the DNA code.
RNA contains the genetic code.
Answers
Answer:
3rd
Explanation:
Aphids can feed in leafy treetops or tree canopies. ants are usually not abundant in tree canopies unless aphids are also present. you introduce aphids to an area of the tree canopy and survey the abundance of ants over time. Finally, you take a tree and block the ants from the canopy. Then you spend three years counting the number and types of insects on the forest floor around this tree (tree A) and in the area around a tree in which ants are not blocked (tree B). You find that the area around tree A has 25% fewer ants and 40% more beetles than the area around tree B. These data support the hypothesis that: a. ecological interactions in the tree canopy always have a negative effect on forest floor communities. b. there is no relationship between ant abundance and beetle abundance. c. there is a negative relationship between ant abundance and beetle abundance. d. ecological interactions in the tree canopy have no effect on forest floor communities. e. Othere is a positive relationship between ant abundance and beetle abundance.
Answers
These data support the hypothesis that option c. there is a negative relationship between ant abundance and beetle abundance.
Aphids are little sap-sucking insects and members of the arthropod family. Common names embrace aphid and blackfly, though people inside a species will vary wide in color. The cluster includes the soft white woolly aphids. aphids will be quite damaging to plants, like crops, which implies they'll destroy our farms, trees, and gardens if left uncurbed.
In biology, the tree canopy is the surface portion of a plant cropping or crop, shaped by the gathering of individual plant crowns. In forest ecology, cover conjointly refers to the higher layer or environment zone, shaped by mature tree crowns and together with alternative biological organisms.
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Why must cells go through division
Answers
Answer : Because you can't make something out of thin air.
Explanation:
It has to come from somewhere. And that somewhere is the cell.
Which organism has an exoskeleton?An arthropod. For example: a crab.A mammal. For example: a humanA Cnidarian: For example: a jellyfish
Answers
Humans have an endoskeleton. Jellyfish do not have a skeleton. Crab has an exoskeleton.
ANSWER: A.
tolman's views on learning differed from those of skinner in that tolman believed:
Answers
Tolman's views on learning differed from those of Skinner in that Tolman believed in cognitive processes and mental representations, while Skinner focused on external stimuli and reinforcement.
Tolman's cognitive approach emphasized the importance of mental maps and expectations in learning, whereas Skinner's behaviorist approach emphasized operant conditioning and observable behaviors. Tolman put up a theory of learning called "latent learning" or "cognitive maps." He claimed that learning entails the creation of mental images, or cognitive maps, of the surrounding world that direct behaviour.
Tolman argues that learning involves the collection and application of knowledge about the outside world rather from being purely dependent on immediate rewards or punishments, as Skinner proposed. Skinner's behaviourist approach, in contrast, placed more emphasis on the importance of reinforcement, visible behaviour, and outside stimuli in learning. According to Skinner, reinforcement contingencies shape behaviour, and all behaviour is ultimately governed by the results of that behaviour.
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Which direction do
rock fragments eroded
by runoff generally
travel?
A downhill
B uphill
C uphill at certain times
of the day and
downhill at other
times of the day
D horizontally until
they reach an
obstacle that they
cannot pass over
Answers
Answer:
A downhill
Explanation:
A runoff happens when water drags sediment from a rock over a sloping terrain. Thus, water drags the eroded fragments of a rock in favor of gravity, pushing these fragments downwards. This is very common in mountainous and steep regions, without vegetation cover, where erosion caused by runoff is very high.
explain how trees can grow in a
boreal forest,
Answers
Answer:
In the boreal forest the ground thaws more and does not have a permafrost layer. This allows trees to take root. Compose an argument for categorizing mountains and polar regions as terrestrial biomes. Mountains and polar regions have these characteristics and provide land on which certain plants and animals can live.
Explanation:
Answer:
Photosynthesis
Explanation:
By using photosynthesis
List FOUR features of the alveoli.
Answers
The pulmonary alveoli are small sacs found in the lungs, where gas exchange takes places.
Some of their features are:
• They are found in the respiratory bronchioles.
,• They are cup-shaped cavities
,• The gas exchange happens by diffusion in the alveolar membrane.
,• They consist of an epithelial layer and an extracellular matrix surrounded by capillaries.
• They are found only in mammalian lungs
,• They can stretch during inhalation thanks to collagen fibers.
,• In humans, they are functional at 32 weeks of gestation, but they continue to develop until puberty.
Holiday Homework
Subject : Science
Topic : Animal Husbandry
Study the Animal husbandry practices lesson in detail, collect the following information and write in your regular note book. Study any four types of animal hubandry of your choice, visit at least one nearby situated animal husbandry and write the information for each type as,
1. Type of animal husbandry
2. Resources needed
3. Practices followed for well being of animals
4. Medical facilities required to give the animals such as, common diseases caused to animals,vaccination needed, fast spreading diseases etc
5. The product you will get from animals
6. How can the production be increased. 7. Take a photo ( showing you in the photo) of animal husbandry and paste print out in notebook
Answers
Poultry farming rears birds like chicken, ducks, geese, and turkeys, while dairy farming focuses on cattle like cows, buffaloes, and sheep. Apiculture involves rearing honey bees, and sericulture focuses on rearing silk moths. Each type requires specific resources.
Animal husbandry is a crucial aspect of agriculture that involves the breeding, feeding, and management of livestock to obtain valuable outputs such as meat, milk, fiber, fuel, or other products. There are four types of animal husbandry discussed here, each requiring specific resources, well-being practices, medical facilities, and resulting animal products.
Poultry Farming: This type involves rearing birds like chicken, ducks, geese, and turkeys. The necessary resources include land, water, poultry feed, and electric supply. Dairy Farming: This type focuses on rearing cattle like cows, buffaloes, and sheep. Required resources include land, water, fodder, and electric supply. Apiculture: This type involves rearing honey bees. Required resources include beehives, land, and flowers. Sericulture: This type focuses on rearing silk moths. Required resources include mulberry trees, land, and reeds.Learn more about Animal husbandry: brainly.com/question/18090435
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8.
Describe your knowledge of nanomaterials synthesis methods.
Answers
Nanomaterials are synthesized using different techniques that include physical, chemical, and biological methods. The type of method chosen depends on the application, morphology, and structure of the nanomaterial that is required.
Physical methods used in the synthesis of nanomaterials include laser ablation, high-energy ball milling, electron beam lithography, and thermal evaporation.
Chemical methods involve the reduction of precursors to form nanomaterials. Chemical reduction methods used include sol-gel, hydrothermal synthesis, co-precipitation, and solvothermal synthesis.
Biological methods involve the use of biological organisms such as bacteria, yeast, or fungi to produce nanomaterials. The synthesis of nanomaterials using biological organisms is referred to as green synthesis. The advantage of green synthesis is that it is cost-effective and environmentally friendly.
Nanomaterials synthesis is important in the development of new products and technologies in different fields, including energy, medicine, and electronics. It is also used in the production of catalysts, sensors, and biomedical applications.
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choose the answer that fills in the blanks of this sentence in the correct order. most protozoa have a motile, feeding stage known as a(n) which, in some protozoa, alternates with a resting state known as a(n) .
Answers
Most protozoa have a motile, feeding stage known as a(n) "trophozoite," which, in some protozoa, alternates with a resting state known as a(n) "cyst."
Some of the cells in the top layer of the skin produce keratin, a protein that gives skin its strength and flexibility. Normally, these cells move up to the surface of the skin as they start to die so they can be shed. But the cells sometimes move deeper into the skin and multiply, forming a sac. Cyst removal may be performed under general anaesthesia or sedation depending on the size and location. The surgeon will make an incision on the skin above or near the cyst to either drain or remove it. The skin may be sutured closed and covered with sterile strips and a gauze dressing or surgical glue.
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How could human activity disrupt the habitat and niche of an organism like the gray fox?
Answers
Answer:
Disruption such as deforestation or mining can destroy the habitat, leading to water pollution, mud slides, and loss of soil. With the habitat affected, the animals the grey fox feeds on, such as rabbits or mice, will be affected as well, leading to the grey fox losing a source of food. By limiting the diet of the grey fox, other predators will be more likely to compete with the grey fox, disrupting its niche.
Which group of flasks acted as the experimental group and control group in Pasteur's experiment?
Answers
Answer: becteria
Explanation:
pasteur diveded micro-organisms in to severel group of and control groups.
which phrase best defines ecosystem? responses an ecosystem grows exponentially unless a factor limits it. an ecosystem grows exponentially unless a factor limits it. an ecosystem is a community and its surrounding nonliving environment. an ecosystem is a community and its surrounding nonliving environment., an ecosystem is a large tract of land that includes many species. , , an ecosystem is a large tract of land that includes many species., an ecosystem is made up of individuals of the same species in the same place.
Answers
The phrase that best defines an ecosystem is "An ecosystem is a community and its surrounding nonliving environment" because an ecosystem is the living and non living parts of a habitat. Option B.
An ecosystem can be defined as a complex and interconnected system comprising a community of living organisms (plants, animals, microorganisms) and their physical and chemical environment, including the nonliving factors such as air, water, soil, sunlight, and climate.
It involves the interactions and relationships among organisms and between organisms and their environment.
This definition highlights the importance of both living (biotic) and nonliving (abiotic) components in an ecosystem.
The community of organisms within an ecosystem interacts with one another through various ecological processes such as predation, competition, and symbiosis.
Meanwhile, the abiotic factors provide the necessary resources and conditions for the organisms to survive and thrive.
Understanding ecosystems is crucial for comprehending how energy flows, nutrients cycle, and species interact within a given environment. Ecosystems can vary in scale, ranging from small microcosms like a pond to vast ecosystems like a forest or a coral reef.
By studying ecosystems, we can gain insights into the intricate balance and interdependencies that sustain life on Earth.
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Which motion of particles across a membrane requires energy?
from high concentration to low concentration
from low concentration to high concentration
with no concentration gradient
through dynamic equilibrium
Answers
Answer:
B
Explanation:
Edge 2021
The motion of particles across a membrane from low concentration to high concentration requires energy. This process is called active transport. So, the correct option is B.
What is Active transport?Active transport, which requires energy in the form of ATP (adenosine triphosphate) or another energy source, is the movement of particles or molecules across a membrane from a region of low concentration to an area of high concentration, against the concentration gradient.
Numerous cellular functions, including the absorption of nutrients and the elimination of waste materials, depend on this mechanism. The sodium-potassium pump and the proton pump are two examples of active transport since they both employ ATP to move ions across cell membranes.
Therefore, the correct option is B.
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In the ocean surrounding Antarctica, there are fish that survive the cold water by using a molecule made of glycoproteins that circulates the blood and keeps it from freezing. Certain kinds of worms that live in the Arctic ocean also make antifreeze proteins that help them live in icy water. a.Convergent
b.Divergent
c.Coevolution
Answers
Option a is correct. In seas around Antarctica, fish survive cold water using molecule of glycoproteins that circulate blood and prevent freezing. Certain worms inhabiting Arctic Ocean produce antifreeze proteins helping them survive in frigid waters. It's convergence.
What is convergent evolution?Convergent evolution happens when species occupies similar ecological niches adapting in similar ways in response to same type of selective pressures. Traits that emerge through convergent evolution are called "analog structures." They are in contrast to "homologous structures" which have a common origin.
What is the root cause of convergent evolution?Convergence often results from similar genetic alterations that can occur in two ways: Evolution of similar or identical mutations in independent lineages, called parallel evolution. And the evolution of independent lineages of alleles shared by populations, known as collateral genetics.
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Photosynthesis and cellular respiration both involve the use and release of gases. Which statement correctly identifies the role of gases in the two processes
Answers
Answer:
You have no options for me to choose from, but I'm going to make a wordy response anyway. The answer is stated below:
Explanation:
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
What is photosynthesis?Photosynthesis uses carbon dioxide and releases oxygen and cellular respiration uses oxygen and release carbon dioxide.
Photosynthesis is the process in which green plants prepare their own food in the presence of sunlight and light energy is converted into chemical energy by the process of cellular respiration.
The process of photosynthesis takes place in green plants only due to presence of chlorophyll and materials such as sunlight, water, carbon dioxide is required for the process of photosynthesis.
The equation of photosynthesis is represented below:
6CO2+ 6H2O - C6H12O6 + 6O2
The process of food manufacturing in plant is done through photosynthesis and the plants are known as autotrophs as they are the producers.
In the process of photosynthesis the reactant have 6 carbon dioxide molecules and six water molecules, and light energy converted into chemical energy due to presence of chlorophyll.
Therefore, Cellular respiration uses carbon dioxide and releases oxygen, while photosynthesis uses oxygen and releases carbon dioxide.
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Which TWO characteristics of phospholipids' orientation facilitate their function in the cell?
A
B
C
D
The inward-facing orientation of non-polar tails allows the bilayer to act as a barrier for charged and polar molecules entering and exiting the cell.
The inward-facing orientation of polar tails allows the bilayer to act as a barrier for charged and non-polar molecules entering and exiting the cell.
The outward-facing orientation of hydrophobic heads allows interactions between the cell and the aqueous environment.
The outward-facing orientation of hydrophilic heads allows interactions between the cell and the aqueous environment.
The outward-facing orientation of polar heads allows polar molecules to easily enter and exit the cell.
Answers
The two characteristics of phospholipids orientation that facilitate their function in the cell are as follows:
The outward-facing orientation of hydrophilic heads allows interactions between the cell and the aqueous environment.The inward-facing orientation of non-polar tails allows the bilayer to act as a barrier for charged and polar molecules entering and exiting the cell.What is the phospholipid bilayer?The phospholipid bilayer of the cell membrane consists of two layers of phospholipids, with a hydrophobic tail and a hydrophilic head.
The head (polar region) of each phospholipid molecule is oriented towards the exterior of the bilayer while the tail (nonpolar region) of each phospholipid molecule is oriented towards the interior of the bilayer. This orientation is due to the hydrophobic effect.
Therefore, it can be said that the two characteristics of phospholipids orientation that facilitate their function in the cell are as follows:
The outward-facing orientation of hydrophilic heads allows interactions between the cell and the aqueous environment.The inward-facing orientation of non-polar tails allows the bilayer to act as a barrier for charged and polar molecules entering and exiting the cell.Learn more about phospholipid bilayer at:https://brainly.com/question/13198012
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Eukaryotic cells that contain more than two sets of genetic information are referred to:_________
a. asmitotic.
b. diploid.
c. homologous.
d. polyploid.
e. haploid.
Answers
Eukaryotic cells that contain more than two sets of genetic information are referred to diploid (option B).
What is a diploid cell?A diploid cell is a cell, having a pair of each type of chromosome, one of the pair being derived from the ovum and the other from the spermatozoon.
On the other hand, a haploid cell is a cell having a single set of unpaired chromosomes.
Most somatic cells of higher organisms are diploid in number, meaning that they contain two sets of chromosomes in their cells.
Therefore, eukaryotic cells that contain more than two sets of genetic information are referred to diploid.
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In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BBFF x bbff cross would be expected to be heterozygous for both traits?
Answers
Answer:
100%
Explanation:
This question involves two genes in guinea pigs; one coding for fur color and the other for fur length. The alleles of black fur (B) and short fur (F) is dominant over the alleles for brown fur (b) and long fur (f).
In a cross between two offsprings with genotypes: BBFF x bbff, the following gametes will be produced by each parent:
BBFF - BF, BF, BF, and BF
bbff - bf, bf, bf, bf
Using these gametes in a punnet square (see attached image), one will notice that all of the offsprings will have the genotype: BbFf i.e all or 100% of the offsprings are heterozygous for both of the genes or traits.
red-green color blindness is inherited as a sex-linked recessive trait. the gene is found on the x chromosome. can a man with normal color vision be a father of a daughter with red-green color-blindness?
Answers
Man can't have red-green color-blindness unless their is a mutation.
In general, A red/green color blind boy will not receive a color blind 'gene' from his father, even though if father is color blind, this is because father can only pass an X chromosome to his daughters. Males only gets 1 X chromosome, from mother. If that X chromosome has the gene for red-green color blindness , they more likely to have red-green color blindness.
Mutations in the OPN1LW, OPN1MW, and OPN1SW genes are responsible for of color vision deficiency . These proteins are generally produced from genes that play essential roles in color vision.
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