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Crank
3 years ago
8

Which of the parents can pass the allele for hemophilia to a son? Explain.

Biology
1 answer:
lilavasa [31]3 years ago
6 0
The father determines if its male or female. So the father is the carrier and the allele is on the Y chromosome.
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Although selection operates against deleterious alleles in populations, they are rarely lost from these populations. For example
KonstantinChe [14]

Answer:

Deleterious alleles appear sporadically in a population

Explanation:

A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.

Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.

3 0
2 years ago
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Answer:

2 in 4

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If a female cat with orange fur (XOXO) is crossed with a male cat with black fur (XoY) then:

P: XOXO  x  XoY

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This means that half of the offspring will be females with tortoiseshell color  (XOXo) and other half  of the offspring will be males with orange fur (XOY).

6 0
2 years ago
HELP The movement of tectonic plates in two different locations is shown below:
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Hydrogen bonds allow for cohesion and adhesion. Think water properties
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What is the best definition of activation energy
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<span>The lowest quantity of energy that the reacting species must possess in order to undergo a specified reaction.</span>
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