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Aleksandr [31]
3 years ago
8

_____________ is the process that occurs when two groups of organisms become incapable of successfully interbreeding even when t

hey are not separated by geography. (Thought to result from restricted gene flow).
Biology
1 answer:
zvonat [6]3 years ago
7 0

Answer:

Sympatric speciation

Explanation:

Reproductive isolation is the phenomena where two groups of organisms are not able to interbreed because of many mechanical, spatial or temporal barriers. It ultimately leads to formation of two different species. It can occur by allopatric speciation or sympatric speciation.

In allopatric speciation, the groups are not able to interbreed because they are geographically isolated. However sympatric speciation occurs in the same geography. The two groups inhabit the same area but are still not able to interbreed because gene flow is prevented between them. For example, in plants polyploidy can occur due to random mutation. Such a plant will not be able to mate with other plants of same species in the same area because of different chromosome number. Hence, it becomes reproductively isolated from rest of the plants in the area.

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There are 100 cats in a population that follows hardy-weinberg conditions. 4 cats display a recessive white coat color. how many
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We know that Hardy-Weinberg conditions include the following equations:


p^{2}+2pq+ q^{2}=1


where p+q=1


And where p = dominant, and q = recessive; this means that p^{2} is equal to the homozygous dominant, 2pq is the heterozygous, and q^{2} is the homozygous recessive .


So we have 100 total cats, with 4 having the recessive white coat color. That means we have a ratio of \frac{4}{100} or 0.04. Let that equal our q^{2} value.


So when we solve for q, we get:


q^{2}=0.04

q=\sqrt{0.04} =0.2


Now that we have our q value, we can use the other equation to find p:


p+q=1


p+0.2=1


p=0.8


So then we can solve for our heterozygous population:


2pq=2(0.8)(0.2)=0.32


This is the ratio of the population. So we then multiply this number by 100 to get the number of cats that are heterozygous:


0.32*100=32cats


So now we know that there are 32 heterozygous cats in the population.

8 0
3 years ago
How can using the Scientific Method help others?
Tpy6a [65]

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Explanation:

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4 0
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Read 2 more answers
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Sav [38]

The correct answer is: Physical Neglect.

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How is the proportion of hydrogen to helium in the Sun's core changing over time?
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Answer: The percentage of the helium will increase with the decrease in the percentage of the hydrogen.

Explanation:

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