Answer:
2,3,1,4
Explanation:
hopefully this helps
Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere. Once the chromosome has split, each chromatid is called a daughter chromosome. At the end of cytokinesis, how many daughter chromosomes will be found in each cell? Explain.
Answer: 2
Explanation:
Each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.
At the end of cytokinesis, there will be 46 daughter chromosomes in each cell.
MITOSIS:Mitosis is the type of cell division that results in two daughter cells that are genetically identical to one another. According to this question, human cells possess 46 chromosomes, which divides during mitosis into daughter chromosomes called chromatids.Therefore, after cytokinesis, 46 daughter chromosomes will be present in each cell in order to maintain the chromosome number of the parent cell.
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"__________ are intramuscular high-energy phosphates.
A. ADP and PCr
B. ADP, AMP, and PCr
C. ATP and PCr
D. ATP, ADP, AMP, and PCr"
The C. ATP and PCr are intramuscular high-energy phosphates
Phosphocreatine (PCr) and adenosine triphosphate (ATP) are the two most prevalent intramuscular high-energy phosphate substances. These chemicals are essential for supplying the muscle contraction energy needed for high-intensity activities. Muscle contractions use ATP as their immediate source of power. Adenosine diphosphate (ADP) and an inorganic phosphate molecule (Pi) are the products of the hydrolysis of ATP, which releases energy.
The energy produced by this breakdown drives the contraction of muscles. On the other hand, PCr serves as an easily accessible source of phosphate groups with high energy. When there is a significant demand for energy, PCr gives an extra phosphate group to ADP, which helps to regenerate ATP. The enzyme creatine kinase serves as the catalyst for this reaction.
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Many different types of mutations can occur within the body. Cystic fibrosis is a genetic disorder that is caused by different mutations within the CFTR gene. One mutation in the CFTR gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence. Which type of mutation causes this translation error that leads to cystic fibrosis?
silent
missense
nonsense
deletion
Answer:
Deletion
Explanation:
I think it is the last one
Deletion
If it really helped please give me brainliest
A nonsense mutation is one mutation in the CFTR gene that leads to cystic fibrosis causes translation to end earlier in the gene sequence.
Cystic fibrosis is a genetic disorder that is caused by different mutations within the CFTR gene.
The CFTR gene codes for the CFTR protein whose function is as an anion channel (chloride ion) which helps control the movement of water in and out of the membrane of cells that are specialized to produce mucus, sweat, saliva, tears and digestive enzymes
When CFTR protein is defective or absent, thick, sticky mucus accumulates in these cells, obstructing the airways and glands.
The most common mutation of the CFTR gene is a deletion whereby the codon for the amino avid phenylalanine is deleted resulting in the production of a defective CFTR protein.
Another form of mutation in the CFTR gene is a nonsense mutation in which a stop codon is inserted in the middle of the gene resulting in the production of a shortened CFTR protein, which is then degraded by the cell.
Therefore, a nonsense mutation in the CFTR gene leads to cystic fibrosis by causing translation to end earlier in the gene sequence.
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Hunting reserves also support wildlife conservation.give reason
Answer:
. because wild life is a renewable natural resource
What is an Example of Structural Adaptation for Reproduction with Plants?
Flexible Stems
Spines Development
Deep Root Systems
Ballistic Seed-Dispersal
Answer:
An example of structural adaptation for reproduction with plants is c. Deep root systems.
Deep root systems are a structural adaptation that allows plants to access water and nutrients from deeper layers of soil, increasing their chances of survival in dry or nutrient-poor environments. These deep roots also allow the plant to establish itself firmly in the soil, increasing its chances of reproducing successfully.
Option a. Flexible stems, b. Spines development and d. Ballistic seed-dispersal are not structural adaptations related to reproduction, but other strategies that plants use to survive in different environments. Flexible stems allow plants to bend and sway in the wind without breaking, spines development protect plants from herbivores and Ballistic seed-dispersal is a way for plants to scatter their seeds away from the parent plant.
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What is the relationship between DNA, genes, chromosomes, nuclei and cells
Genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Select the sequence below that places these layers of a developing tooth into the proper order from deepest layer to most superficial layer 1. dentin, predentin, ameloblasts, odontoblasts 2. dental pulp, odontoblasts, predentin, dentin, enamel prisms, ameloblasts, enamel reticulum 3. enamel prisms, ameloblasts, dental pulp, odontoblasts 4. dental pulp, predentin, dentin, ameloblasts
The correct sequence that places the layers of a developing tooth into the proper order from deepest layer to most superficial layer is:
4. dental pulp, predentin, dentin, ameloblasts
Explanation:
1. The dental pulp is the deepest layer and is composed of connective tissue containing blood vessels, nerves, and other cellular components.
2. Predentin is the layer that is secreted by odontoblasts, located adjacent to the dental pulp. It is an unmineralized matrix that serves as a precursor to dentin.
3. Dentin is the hard, mineralized tissue that forms the bulk of the tooth structure. It is secreted by odontoblasts and lies external to the predentin.
4. Ameloblasts are cells that secrete enamel, the outermost and hardest layer of the tooth. Ameloblasts are located on the outer surface of the developing tooth, after dentin formation.
Therefore, the correct order is dental pulp, predentin, dentin, ameloblasts (option 4).
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describe three characteristics that allowed angiosperm to reproduce in a terrestrial environment.
Angiosperms' flowers, seeds, and double fertilization have allowed them to adapt and thrive in a terrestrial environment.
Angiosperms have three main characteristics that have allowed them to successfully reproduce in a terrestrial environment.
The first characteristic is their flowers, which are highly specialized structures that attract pollinators and ensure fertilization.
The second characteristic is their seeds, which are protected by a fruit and can be dispersed by wind, animals, or water, allowing for colonization of new habitats.
Finally, angiosperms have evolved a complex system of double fertilization, in which one sperm cell fertilizes the egg cell to form the embryo, while the other fuses with two polar nuclei to form endosperm, which provides nutrients for the developing embryo. This allows angiosperms to produce highly specialized seeds with a high chance of germination and survival in a range of environmental conditions.
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In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
Patterned vegetation is a vegetation community that exhibits distinctive and repetitive patterns.
Patterned vegetation refers to the spatial arrangement and distribution of different plant species or vegetation types that form distinct patterns on the landscape.
These patterns can be observed at various scales, ranging from small patches to large-scale formations, and they often result from interactions between the environment, ecological processes, and plant species. The formation and maintenance of patterned vegetation are influenced by complex interactions between biotic and abiotic factors.
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Your question is incomplete, most probably the full question is this:
In your own words, please describe the figure below. What vegetation patterns seen in the real world does this help explain?
Im what type of organism does cellular respiration occur?
Answer:
this occurs in animals and plants they use oxygen molecules to break down food it also occurs in cells of animals, plants, and fungi, and also in algae and other protists.
Explanation:
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Which two atoms form a covalent bond?
Answer:
In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.
Explanation:
describe in detail how enzymes function using pectinase as an example
Answer:
Pectinase is an enzyme that breaks down pectin, a polysaccharide found in plant cell walls. Therefore, pectinase enzymes are commonly used in processes involving the degradation of plant materials, such as speeding up the extraction of fruit juice from fruit, including apples and sapota
Can one individual person have an impact on their environment? a Yes, because each environment centers around an individual person. b No, because only groups of people make an impact on an environment. c No, because only plants and animals make an impact on an environment. d Yes, because everything impacts an environment, no matter how small.Can one individual person have an impact on their environment? a Yes, because each environment centers around an individual person. b No, because only groups of people make an impact on an environment. c No, because only plants and animals make an impact on an environment. d Yes, because everything impacts an environment, no matter how small.
d )Yes, because everything impacts an environment, no matter how small.
Can one individual person have impact on their environment?One individual person can have an impact on their environment, whether positive or negative, through their actions and behaviors. For example, an individual person can reduce their water usage, recycle, or use public transportation, which can all have a positive impact on the environment.
On the other hand, an individual person can litter, use harmful chemicals, or drive a car that emits pollutants, which can have a negative impact on the environment. Every action, no matter how small, can contribute to the overall impact on the environment.
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82. total rna was purified from e. coli cells and centrifuged in a sucrose gradient. fractions were collected and analyzed by uv absorbance. the gradient profile is shown below. a) what is the content of peaks a and b? b) what is the content of peak d? c) what type of rna is not seen, and why is it not seen by uv absorption?
a. Peak b may contain messenger RNA (mRNA) or transfer RNA (tRNA), which are smaller and sediment at a lower rate compared to rRNA.
b. Molecules have low molecular weight and sediment at a fast rate, resulting in the formation of peak d.
c. mRNA does not produce distinct peaks in UV absorbance profiles.
a) Peak likely contains ribosomal RNA (rRNA) since rRNA is abundant in cells and is known to sediment at a high rate. Peak b may contain messenger RNA (mRNA) or transfer RNA (tRNA), which are smaller and sediment at a lower rate compared to rRNA.
b) The content of peak d is likely to be free nucleotides or small RNA fragments. These molecules have low molecular weight and sediment at a fast rate, resulting in the formation of peak d.
c) Unlike rRNA and tRNA, mRNA lacks significant UV chromophores, such as aromatic bases, which are responsible for strong UV absorption. Therefore, mRNA does not produce distinct peaks in UV absorbance profiles.
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the type of energy which has the greatest impact on the state of matter is ..
A. sound
B. Gravitational
C. thermal
Answer: Thermal
Explanation:
When a substance absorbs energy the atoms and molecules move more rapidly and this increased kinetic energy pushes particles far enough, that they change form. This energy is usually heat or thermal energy.
The population of white pines on his land in 2015 was 40. After last weekend the population is 155. Find the growth rate.
Answer:
287.5%
Explanation:
Initial = 40
Recent = 155
Growth rate = ( recent - initial )÷ initial ×100/1
=( 155-40/40) × 100/1
= 115/40×100/1
= 2.875×100/1
= 287.5%
The rate of growth is 287.5%
PLEASE PLEASE PLEASE HELP
Which is NOT one of the four fundamental forces in the universe?
Electromagnetism
Strong
Gravity
Mass
Answer:
Mass
Explanation:
From walking on the street, to launching a rocket into space, to sticking a magnet on your refrigerator, physical forces are acting all around us. But all the forces that we experience every day (and many that we don't realize we experience every day) can be whittled down to just four fundamental forces:
Gravity.
The weak force.
Electromagnetism.
The strong force.
These are called the four fundamental forces of nature, and they govern everything that happens in the universe.
Which is the largest organ?
sartorius
skin
hair
gluteus maximus
Science. The gluteus is the butt muscles
Answer:
Skin is the largest organ
Answer:
skin
Explanation:
skin is the largest organ in the body.
if brown bears evolved in what is now new zealand (instead of in asia and upper north america), would polar bears and penguins coexist?
Polar bears and penguins coexist in New Zealand and Antarctica.
Brown bears evolved in New Zealand and polar bears may have diverged from New Zealand brown bears. Penguins evolved in New Zealand so polar bears and penguins will coexist in New Zealand and Antarctica. Penguins live in the southern hemisphere and polar bears live in the northern hemisphere so polar bears don't eat penguins.
Penguins and polar bears don't get along. Penguins and polar bears can live in similar habitats, but we never actually see penguins and polar bears coexisting in the wild. This is because polar bears live in the Arctic region of the northern hemisphere. These animals live on opposite poles of the world. Polar bears are terrestrial predators and penguins are flightless birds so if polar bears live in Antarctica penguins cannot dare to live in Antarctica.
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yeasts can perform both aerobic respiration and fermentation. in fact, the homebrewer must be careful that oxygen is not introduced into the carboy once the yeast begin fermentation. what would be the products if o2 is allowed to enter the carboy?
Fermentation can only take place in an anaerobic environment because yeast is relatively anaerobic. When there is oxygen present, yeast engages in aerobic metabolism.
Can yeast ferment and breathe aerobically?Yeast fermentation: When oxygen is present, yeast engages in aerobic respiration, converting carbohydrates (a source of sugar) into carbon dioxide and water. In the absence of oxygen, yeast ferments carbohydrates and produces carbon dioxide.
Through the process of electron transfer and oxygen, yeast mitochondria regenerate NAD+. Alcohol and CO2 are created during the fermentation process, which essentially only takes place in the absence of oxygen (resulting in carbonation). The roommate left the bucket open to the air, which provided the yeast with an ongoing supply of oxygen.
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7. What is the proper sequence of events in maintaining homeostasis?
a. 1. Stimulus, 2. Receptor, 3. Signal, 4. Response
b. 1. Stimulus, 2. Response, 3. Signal, 4. Receptor
C. 1. Receptor, 2. Stimulus, Signal, 4. Response
d. 1. Signal, 2. Receptor, 3. Stimulus, 4. Response.
Answer:
a.
Explanation:
stimulus, receptor detects changes, input info and output info(signal), response
a. 1. Stimulus, 2. Receptor, 3. Signal, 4. Response
Homeostasis is any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival.
If homeostasis is successful, life continues; if it's unsuccessful, it results in a disaster or death of the organism.
Proper sequence of events in maintaining homeostasis:
Stimulus: Produces change in variable, change detected by receptor. Input: Information sent along efferent pathway to control center. Output: Information sent along efferent pathway to activate effector. Response: Feeds back to influence magnitude of stimulus and returns variable to homeostasis.Therefore, the correct option is a.
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Describe how the two decomposers you chose would fit into this food web
Answer: Decomposers are organisms that break down dead or decaying organisms, In Fungi, they have special enzymes that digest the decaying organisms, when the fungi die they will leave behind much nutrition in the soil for producers. Earthworms are detritivores that physically ingest decaying organisms, physically breaking the material down to further help other organisms with the physical decomposition of nutrients. Waste from the earthworms also contains nutrients that would go back into the soil and help producers grow to keep the food web balanced. (You did not specify the food web so I'm using fungi as one example, and a detritivore such as an earthworm for the second.)
Explanation:
Fructose is a simple sugar that can be a source of energy for the body. What type of organic molecule is
fructose
Fructose is a monosaccharide from a class of organic compounds called glucides.
cells that make up the walls of blood vessels around the brain that allow for very few molecules and microbes to pass make up the
The blood vessels surrounding the brain are lined with cells that only allow very few molecules and microbes to pass through the Blood-brain barrier.
In most cases, the BBB can only be crossed by lipid-soluble (lipophilic) molecules that have a positive charge and a low molecular weight (under 400–600 Da). Carriers, receptors, and absorptive-mediated transport are just a few of the cell's endogenous transport systems that are required for the transport of other molecules.
Pathogens, solutes, and large or hydrophilic molecules can't pass through the blood–brain barrier into the cerebrospinal fluid. However, hydrophobic molecules like O2, CO2, hormones, and small non-polar molecules can.
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a mother has red-green colorblindness, so both of her x chromosomes carry the x-linked disorder. her husband does not have red-green colorblindness. if the couple has a son, what are the chances that he is colorblind? set up a punnet square to answer the question. 0% 50% 100% 25%
The likelihood that daughters will carry the gene and be able to pass it on to the following generation is 50%. A daughter has a 50% probability of not having the gene and so not being able to pass it on. Option (2)
Sons who are healthy and lack the gene have a 50% chance of doing so. On the other hand, there is a 50% probability that a boy will have the gene and manifest the characteristic or condition. Inheritance of a trait or condition is said to be X-linked if the gene responsible for it is found on the X chromosome. Men have one X and one Y chromosome, while women have two X chromosomes. Genes on the X chromosome can be dominant or recessive.
Their expression differs in males and females. Only when the gene is present in two copies in females do X-linked recessive genes express themselves (one on each X chromosome). However, for an X-linked recessive trait or condition to manifest in males, just one copy of the gene is required. For instance, a mother may unintentionally possess a recessive gene on one of her X chromosomes and convey it to her son.
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Correct Question:
A mother has red-green colorblindness, so both of her x chromosomes carry the x-linked disorder. her husband does not have red-green colorblindness. if the couple has a son, what are the chances that he is colorblind? set up a punnet square to answer the question.
1. 0%
2. 50%
3. 100%
4. 25%
Why is type O negative blood considered the universal red blood cell donor?
It has all three types of antigens.
It has all three types of antibodies.
It lacks all three types of antigens.
It lacks all three types of antibodies.
Type O blood type is the only blood group that is safe to utilize in an emergency when a patient's blood group is unknown. The fact that it works with all blood groups is the explanation.
What are the four main blood type categories?
The four main blood types (groups) are A, B, AB, and O. The genes you inherited from your parents define your blood type. There are a total of 8 blood types, each of which can be either Right hand drive positive or Right hand drive negative.
What blood type is the rarest?
Only 1% of our contributors have AB negative, the rarest of a seven major blood types. Although being in little supply, there is
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Ples Help!!! What are the causes of long term climate change?
Answer:
Carbon dioxide is the main cause of human-induced climate change. It stays in the atmosphere for a very long time. Other greenhouse gases, such as nitrous oxide, stay in the atmosphere for a longtime. Other substances only produceshort-term effects.
Which types of measurement are used to describe quantities of heat and temperature ?
Answer:
There are three different systems for measuring heat energy (temperature): Fahrenheit, Celsius, and Kelvin. In scientific measures, it is most common to use either the Kelvin or Celsius scale as a unit of temperature measurement.
Explanation:
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question 1 1. what effect did repeating the exercise over time have on the muscles used?
Repeating the exercise over time caused the muscles used to become stronger and more efficient at performing the exercise.
When we repeat an exercise over time, our muscles adapt to the movement and become stronger. This is known as the principle of progressive overload.
Our muscles are made up of fibers, and when we exercise, we create tiny tears in these fibers. As our body repairs these tears, our muscles become stronger and more efficient at performing the exercise.
This is why it is important to gradually increase the intensity of our workouts over time, to continue challenging our muscles and promoting growth and strength.
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Species with homologous structures most likely:
A. are not closely related through evolution.
B. use it for the same function.
C. used to use the structure at one time but don't anymore.
D. share a common ancestor.
Groups with homologous characters share a common ancestor. These characters have the same embryological development, although their function might vary. Option D. share a common ancestor.
What is a homologous character?
Homologous characters are structures with the same basic elements.
Their position in the body and the relations with adjacent structures are also the same in different organisms, and they even share the same embryological development.
These structures might show variations between the organisms exhibiting them. Variations might be related to their function and to the environment in which the organism lives. The function they accomplish is not necessarily the same in all the organisms involved.
These homologous characters are present in organisms related that share a common ancestor.
For example, whales, humans, and cats all have the same bones in the same order, but they matured differently in later embryological development.
The correct option is then option D. Species with homologous structures most likely share a common ancestor.
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Species with more likely homologous structures share a common ancestor.
D. share a common ancestor.What are example homologous structures?The most correct definition for homology would be: They are structures of individuals, of different species or not, that were inherited from a common ancestor. The human arm is homologous to the horse's front leg. The bat's wing is homologous to the whale fin.
With this information, we can conclude that homologous have same embryological origin of structures from different organisms, and these structures may or may not have the same function
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