using information from the morgan's experiments, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?
Answers
6%. Recessive homozygote with vestiges of wings and purple eyes, wild type (heterozygous for regular wings and red eyes).
Morgan concluded that this eye colour gene is found on the X and that there is no comparable locus on the Chromosome 7 since the recessive trait—white eyes—was manifested only in men in the F2 generation. A fruit fly Drosophila melanogaster's sex is identified in the manner described below: When XX and XY chromosomes are combined, a female is produced.6%. Recessive homozygote with vestiges of wings and purple eyes, wild type (heterozygous for regular wings and red eyes). Due to the distance between A and B, 50% of the children produced by crossover will have recombinant phenotypes. The significant production of recombinants suggests that the genetics are not related, according to the data. For the F2 plants, there are 50 each of the blue-round and white-oval recombinants and 450 each of the blue-oval and white-round parentals.
(In another cross, a wild-type fruit fly (heterozygous for gray body color and red eyes) is mated with a black fruit fly with purple eyes. The offspring are as follows: wild type, 721; black-purple, 751; gray-purple, 49; black-red, 45. What is the recombination frequency between these genes for body color and eye color? Using information from problem 4, what fruit flies (genotypes and phenotypes) would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?)
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Related Questions
Which of the following explains the unusual events happening all
over the Serengeti?
A
illegal hunting
B
disease from humans
starvation
D
mysterious illness
Answers
Answer:
d
Explanation:
i got it right
What do mitochondria do in healthy cells, and ny had defective mitochondria caused
David to lose his vision?
Answers
Muscle weakness, intolerance to exercise, decreased hearing and vision, ataxia, seizures, learning difficulties, heart problems, diabetes, and poor growth are the hallmark signs of mitochondrial myopathy.
What will happen if have a defective mitochondria?Defects in mitochondria, the body's energy producers that may be found inside practically all cells, are the root cause of mitochondrial disorders. mitochondrial myopathies are mitochondrial diseases that create noticeable muscular issues, while mitochondrial encephalomyopathies are mitochondrial disorders that cause noticeable muscular and neurological abnormalities.Several of the syndromes linked to mitochondrial disease include Barth syndrome, Chronic progressive external ophthalmoplegia, Kearns-Sayre syndrome, Leigh syndrome, Mitochondrial DNA depletion syndromes , Mitochondrial encephalomyopathy, Lactic acidosis, and stroke-like episodes, Mitochondrial neurogastrointestinal encephalomyopathy, Myoclonus epilepsy with ragged red fibers, Neuropathy, ataxia, and retinitis pigmentosa , Pearson syndrome.The mtDNA mutation that causes NARP also causes MILS, and the two disorders can coexist in the same family. NARP can cause developmental delay, seizures, and dementia in addition to the primary symptoms for which it is called.To learn more about mitochondria refer :
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What type of sugar molecule is present in DNA ?
a. D-3-deoxyribose
b. D-ribose
c. D-2_ Deoxyribose
d. D-Glucopyranose
Answers
D-2-deoxyribose type of sugar molecule is present in DNA.
Hence, the correct option is C.
DNA (deoxyribonucleic acid) is composed of nucleotides, and each nucleotide consists of three components: a phosphate group, a nitrogenous base, and a sugar molecule. The sugar molecule in DNA is specifically called 2-deoxyribose.
2-deoxyribose is a modified form of ribose, which is a five-carbon sugar found in RNA (ribonucleic acid). In 2-deoxyribose, one hydroxyl group (-OH) attached to the 2nd carbon of ribose is replaced by a hydrogen atom (-H), hence the name "deoxyribose."
The presence of 2-deoxyribose in DNA is significant because it helps to stabilize the DNA molecule's double helix structure by forming the sugar-phosphate backbone along with the phosphate groups. The nitrogenous bases (adenine, guanine, cytosine, and thymine) attach to the 1st carbon of the deoxyribose sugar, forming the genetic code sequence in DNA.
Therefore, D-2-deoxyribose type of sugar molecule is present in DNA.
Hence, the correct option is C.
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A new predator is introduced to an aquatic ecosystem. In a population of fish that live there, very small fish are more easily able to hide from the predators, and very large fish cannot be easily eaten by predators. What type of natural selection is acting on the population, and what will be the expected result?
A.Stabilizing selection: Since both extremes are selected against, the fish population will remain about the same.
B.Disruptive selection: Over time the fish population will change. Medium-sized fish will become rare, small and large fish will be common.
C.Stabilizing selection: Over time the fish population will change. Medium-sized fish will become rare, small and large fish will be common.
D.Disruptive selection: Since both extremes are selected against, the fish population will remain about the same.
Answers
Disruptive selection: Over time the fish population will change. Medium-sized fish will become rare, and small and large fish will be common is a type of natural selection that is acting on the given population. So, it's B.
What do you mean by Ecosystem?An ecosystem may be defined as any place or area where the members of different species or communities live together and interact with one another for the purpose of food, shelter, and space.
As predators are only able to attack the moderate-sized fishes, so the population of moderate-sized fishes may decline in the aquatic ecosystem, while extremely short and large fishes are able to maintain their population at the same pace.
Therefore, the correct option for this question is B.
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As you saw in Part C, the body sizes of sympatric and allopatric P. cinereus and P. hoffmani are consistent with a hypothesis of character displacement resulting from interspecific competition. What additional information would strengthen the argument that character displacement is in fact responsible for body size evolution in these salamanders
Answers
Answer:
Divergence in the body size trait between both species occurred once they were living together. The evolution of the trait difference occurred after sympatry.
Explanation:
Close species, P. cinereus and P. hoffmani, mostly live in different regions. In allopatry, both species have the same -or very similar- body size. Body size in these species is a heritable trait.
However, there are some areas where P. cinereus and P. hoffmani coexist. When they are in sympatry, P. cinereus exhibits a smaller body size and feeds on smaller prey items than allopatric P. cinereus. On the other hand, sympatric P. hoffmani exhibit bigger bodies, feeding on bigger prey items than the allopatric P. hoffmani.
So, when both species are in sympatry, they develop different morphological traits to avoid competition between them and manage to coexist in the same area. Resource availability is limited, so P. cinereus became smaller and feeds on small prey, while P. hoffmani became bigger and feeds on bigger prey. Through this trait divergence, they got to live longer and reproduce more, decreasing interspecific competition and increasing their fitness.
Allopatric species feed on similar prey items and have similar body sizes, reflecting that the divergence occurred after sympatry. If species living in allopatry were places together in the same habitat, they would exhibit strong competition that, over time, would drive to character displacement.
Which of the following signal words can be used to
give examples of an idea?
A. Then
O B. Eventually
O C. Because
D. Specifically
Answers
Answer:
A
Explanation:
If your word is "than" it is a signal word that is used to give an idea because it allows the writer to compare and contrast ideas or phrases.
Answer:
C. Because
Explanation:
What information does relative dating provide to paleontologists?
Answers
Answer: Age related info
Explanation: It gives idea about the age of fossils and through this one can compare two fossils existense at same time and give their relation
Why do space objects provide better evidence for the formation of Earth than Earth itself?
Answers
Answer:
I not really sure but I think it's because earth and other planets could have formed according to two different theories
A fossil of a new primate species is discovered. scientists find evidence that members of this species traveled long distances without putting their hands down on the ground and used tools. which trait would the fossil most likely have? a foramen magnum at the back of the skull a curve in the lumbar region of the spine a femur angled outward an opposable big toe
Answers
The trait would the fossil most likely have is a curve in the lumber region of the spine.
What is the concept of fossil?Fossils are remains or traces of animals and plants preserved in rocks. Remains are parts of an animal (eg bones, teeth, scales) or plant (eg trunks) and traces are evidence of its existence or activities (eg footprints).
From the fossils it is possible to see the evolutions that the animals suffered in this case it was a curve in the lumber region of the spine.
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Answer:
b. a curve in the lumbar region of the spine
Explanation:
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?.
Answers
The human population has changed since it first appeared on earth as b. the population has generally increased, and at rates that have varied over time.
The increase or decrease of a population depends on the environmental conditions and the factor of how a population tends to adapt to the changing conditions on the Earth.
The human population has managed to change over time with the changing conditions of the earth and they are able to implement adaptative changes into their genomes with time.
The human population has increased since the beginning of time as humans managed to make adaptations for themselves to survive in the changing conditions of the earth.
However, the rates at which the human population increased were not always the same. Sometimes, a factor such as an infectious disease caused the human population to grow slowly whereas other times, the growth was rapid.
Although a part of your question is missing, you might be referring to this question:
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?
a. The population has generally increased at a relatively constant rate
b. the population has generally increased, and at rates that have varied over time
c. The population increases rapidly until it reaches carrying capacity, where it has remained for thousands of years
d. The population increases rapidly until it reaches carrying capacity, and then decreased at a constant rate
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the risk of bacterial endocarditis after percutaneous and surgical biological pulmonary valve implantation
Answers
The risk of bacterial endocarditis following percutaneous and surgical biological pulmonary valve implantation varies depending on multiple factors, including individual patient characteristics and procedural considerations.
Bacterial endocarditis is a rare but potentially serious complication that involves an infection of the heart's inner lining or heart valves. The risk of bacterial endocarditis after pulmonary valve implantation, whether percutaneous or surgical, is influenced by factors such as the patient's overall health, presence of underlying cardiac abnormalities, and the specific procedure performed.
Research suggests that the risk of bacterial endocarditis following percutaneous pulmonary valve implantation (PPVI) using biological valves is generally low. The procedure is minimally invasive, reducing the risk of complications compared to open-heart surgery. However, antibiotic prophylaxis may still be recommended in certain high-risk cases.
In surgical biological pulmonary valve implantation, the risk of bacterial endocarditis is generally associated with the presence of pre-existing heart conditions, the use of prosthetic material, or a history of prior endocarditis. Antibiotic prophylaxis is often administered to mitigate this risk during surgical procedures.
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how do plants store long term energy?
Answers
Answer:
Plants store long term energy in their glucose until they need the energy to use it.
Explanation:
When two substances are in contact with one another the temperatures become the same over time
Answers
When two substances are in contact, heat energy flows from the warmer substance to the cooler substance until both reach the same temperature, establishing thermal equilibrium.
When two substances are in contact with each other, the process of temperature equalization occurs. This phenomenon is known as thermal equilibrium. Thermal equilibrium is based on the principle that heat energy flows from a region of higher temperature to a region of lower temperature until both substances reach the same temperature.
The transfer of heat occurs through a process called conduction. In this process, the particles of the warmer substance have higher kinetic energy and collide with the particles of the cooler substance, transferring energy to them. This transfer continues until there is no longer a temperature difference between the two substances.
The rate at which temperature equalization occurs depends on factors such as the thermal conductivity of the materials, the surface area of contact, and the temperature difference between the substances. In general, the greater the temperature difference, the faster the equalization process.
Once thermal equilibrium is reached, the substances have the same temperature, indicating that there is no longer a net flow of heat between them. This principle is fundamental to various aspects of daily life, from cooking and heating to climate control and heat transfer in industrial processes.
In summary, when two substances are in contact with each other, the temperatures tend to become the same over time due to the process of thermal equilibrium. Heat energy flows from the warmer substance to the cooler substance until both reach the same temperature, resulting in temperature equalization.
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help me please......
Answers
Answer:
These cells have a circular DNA molecules
Explanation:
Why are complex carbohydrates a better dietary choice than simple carbohydrates?
Answers
Complex carbs pack in more nutrients than simple carbs. They're higher in fiber and digest more slowly. This is because complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. This also makes them more filling, which means they're a good option for weight control. They're also ideal for people with type 2 diabetes because they help manage blood sugar spikes after meals.
you discover a population of frogs that contains exactly 1000 individuals. while sequencing the genome of all the individuals, you discover that two frogs are heterozygous for a snp at position 245 in which they have a t nucleotide. the more common allele at this locus has a g nucleotide. the t allele provides no selective advantage and is not detrimental. what is the likelihood that this rare allele will eventually become fixed in the population of frogs? input your answer three decimal places to the right.
Answers
To determine the likelihood that the rare allele will eventually become fixed in the population,
we can calculate the allele frequency and use it as an estimate of the probability.
Given:
Total number of individuals in the population (N) = 1000
Number of individuals with the rare allele (heterozygous) = 2
The initial frequency (p) of the rare allele can be calculated as the number of rare alleles divided by the total number of alleles:
p = (2 * 1) / (2 * N) = 1 / N
Since the t allele provides no selective advantage or disadvantage, we assume that it will be subject to genetic drift, which is the random change in allele frequencies over time due to chance events.
The probability of fixation (Pfix) for a neutral allele under genetic drift can be approximated as:
Pfix ≈ 1 / (2N)
Substituting the value of N = 1000 into the equation, we have:
Pfix ≈ 1 / (2 * 1000) = 0.0005
Therefore, the likelihood that the rare allele will eventually become fixed in the population of frogs is approximately 0.0005, or 0.05% (rounded to three decimal places).
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please please please help me on me I need it ASAP
Answers
1. C
2. B
Sucrose is the assistant of the genius alchemist called.
Answers
Answer:
The Answer of your question is Albedo
which type of plant has seeds that are encased in a protective fruit?
A. gymnosperms
B. conifers
C. angiosperms
D.horsetails
Answers
Answer:
c=angiosperms
Explanation:
You are studying a plant. Most of the cells in the plant (99 percent) have been found to contain 10 chromosomes. However, you have found in certain parts of the plant the cell containing 5 chromosomes. How could you explain your findings?
Answer choices:
A) Plant reproductive cells are produced by meiosis and cells containing 5 chromosomes are body cells produced by mitosis
B) Plant reproductive cells are produced by mitosis and cells containing 5 chromosomes are body cells produced by meiosis
C) Plant body cells are produced by mitosis and cells containing 5 chromosomes are reproductive cells produced by meiosis
D) Plant body cells are produced by meiosis and cells containing 5 chromosomes are reproductive cells produced by mitosis
Answers
The correct explanation can be "Plant body cells are produced by mitosis and cells containing 5 chromosomes are reproductive cells produced by meiosis".
What is meant by meiosis?
It is a special type of cell division occurs in sexually reproducing organisms that reduces the number of chromosomes in the gametes to half of the parent cell and producing four haploid cells.
Generally, Plants undergo mitotic cell division to produce diploid parts like stem, leaf etc. But they use meiotic cell division to produce haploid parts that ultimately results in the production of egg and sperm cells which are haploid.
Both pollen mother cells and megaspore mother cells undergo meiotic division to produce sperm cells and egg for the continuation of generation. During meiotic division chromosomes are reduced to half of the parent cell.
Hence, certain parts of the plant undergo meiotic division to produce gametes and this result in the reduction of chromosomes to 5 whereas most of the parts of the plant which undergo mitotic division have 10 chromosomes.
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What 5 conditions need to be met for a population to be genetic equilibrium
Answers
In order to meet a genetic equilbrium, a population should:
1. Have no changes in the DNA sequence.
2. Be a very large population.
3. Perform random mating.
4. Have no migration movements taking place.
5. Have no natural selection occuring.
what do most sessile animals eat? (1 sentence)
Answers
Most sessile animals, such as barnacles, corals, and sponges, primarily consume plankton and organic particles by filter feeding or passive absorption.
Sessile animals are those that are permanently attached or anchored to a substrate and do not move around. Examples of sessile animals include corals, sponges, barnacles, and some types of marine worms.
The diet of sessile animals depends on their specific anatomy and feeding mechanisms, which are adapted to their stationary lifestyle
It's important to note that the specific diet of sessile animals can vary greatly depending on their species, habitat, and ecological niche. Some sessile animals may have a combination of feeding mechanisms, while others may rely primarily on one type of feeding strategy.
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How would you expect the rate of speciation of an allopatric case to compare to the rate of speciation of a sympatric case involving formation of allopolyploid offspring?.
Answers
An allopatric case to compare to the rate of speciation of a sympatric case involving formation of allopolyploid offspring by the speciation differences.
Among the quickest prices in allopatric and sympatric species pairs, sympatric prices are approximately 2 to five instances quicker than allopatric prices. Even amongst those prices, variant is predicted due to the fact species pairs might also additionally range particularly evolutionary dynamics, populace sizes, and genetic variability. The allopatric case might arise at a miles slower charge than the sympatric case concerning allopolyploid offspring.
The number one distinction among the 2 forms of speciation is that allopatric speciation takes place in geographically separated populations even as sympatric speciation takes place in populations that might percentage a geographical place in the variety of the ancestral populace.
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If Mary is born with a genetic disease that causes her to have half a heart instead
of a full one. What is the cause of this disorder? Make sure to mention DNA,
RNA, and Proteins.
Answers
is the process of cutting dna into fragments and inserting the fragments with a desired gene into another organism of the same or different species. is dna made by connecting fragments of dna with desired traits from different dna sources. is an organism that contains functional recombinant dna.
Answers
Genetic engineering is the process of cutting dna into fragments and inserting the fragments with a desired gene into another organism of the same or different species.
Using recombinant DNA generation to adjust an organism's DNA to reap perfect developments is known as genetic engineering.Genetic Engineering is the method of slicing DNA into fragments and putting the fragments with the preferred gene into any other organism of the identical or specific species. Genetic engineering is the method of the use of changing the genetic make-up of the DNA the use of recombinant DNA generation.
The discovery of enzymes that might reduce and paste DNA made genetic engineering possible. Restriction enzymes, observed certainly in bacteria, may be used to reduce DNA fragments at particular sequences, even as every other enzyme, DNA ligase, can connect or rejoin DNA fragments with complementary ends.
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I will mark as brainliest if you answer it correctly.
Answers
Answer:Flower
Explanation:flower experiment
Can the atmosphere change in its composition? Explain.
Answers
Hello! Allow me to help!
Your question: Can the atmosphere change in its composition?
My answer: Our atmosphere is made up of many different gases. The most common gases are nitrogen, oxygen and argon. But, the exact amount of each gas is always changing.
Why is my answer correct? Good question! Allow me to explain: Tropical deforestation not only has a large impact on the carbon cycle and climate, but also affects the chemistry of the atmosphere. Together with the carbon cycle and weather patterns land use can affect the concentrations of greenhouse gases like methane and ozone.
Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds. From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.
Changes in atmospheric composition and the rest of the climate system would include temperature, rainfall, and humidity, which would affect the economic importance, geographical distribution, and management of diseases effecting crop production.
Hope this helps! UwU
-Maxwell
answer: yes the atmosphere is changing
explaination: Scientific measurements have documented shifts in chemical composition throughout the lower atmosphere, as well as substantial alterations in chemical composition in the upper atmosphere.
How would the genome of a sexual reproducing multicellular organism be different from the genome of an asexual reproducing unicellular organisms
Answers
The offspring of sexually reproducing organisms are all genetically unique. Because of this, sexually reproducing organisms may have more successful survival of offspring in environments that change than asexually reproducing organisms, whose offspring are all genetically identical.
Step By Step Explanation:
The genome of an erotic reproducing multicellular organism is different from the genome of an agamous reproducing unicellular organism in various aspects.
What do you mean by Genome?A genome may be defined as an organism's complete set of genetic instructions. It is a complete set of DNA in any organism.
The genome of unicellular organisms is genetically identical to one another, while a high diversity is seen in the case of the erotic reproducing multicellular organism due to the phenomenon of variations. The genome of a unicellular organism is very simple, while it is very complex in the erotic reproducing multicellular organism.
Therefore, the genome of an erotic reproducing multicellular organism is different from the genome of an agamous reproducing unicellular organism in various aspects.
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I need some help pleaseee....
Answers
Explanation:
can you take the picture clear because I can't see it sleepy head
in biology the different areas of study are connected and overlap in various ways with concepts that cut across all discliptines which pair of crosscutting concepts are best exeplied when birds fly south when winter comes to the united states and north when spring arrives
Answers
Patterns; cause and effect are pair of crosscutting concepts are best explained when birds fly south when winter comes to the united states and north when spring arrives.
What notions span crosscutting concepts?
In all branches of science, crosscutting concepts are useful. As such, they serve as a means of connecting the various branches of science. They consist of patterns, cause-and-effect relationships, scale, proportion, and quantity, systems, and system models, as well as energy and matter, structure and function, stability, and change.
Patterns: Observed patterns in nature serve as a guide for organizing and classification and raise inquiries about the connections and reasons that underlie them.
Cause and Effect: Events have causes, some of which are straightforward and others of which are complex. Science and engineering place a high priority on understanding causal links and the systems that mediate them.
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