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tia_tia [17]
3 years ago
7

What must occur within a gene pool before the formation of a new species?

Biology
2 answers:
VLD [36.1K]3 years ago
6 0
Reproductive isolation must happen

olga2289 [7]3 years ago
4 0

Answer: The correct answer is- Reproductive isolation.

As per the biological species concept of Ernst Mayor, organisms that are capable of interbreeding and producing viable, fertile offspring belong to same species.

Within a gene pool, if organisms become reproductively isolated, they would be considered as two different species.

Thus, reproductive isolation must occur before formation of a new species.

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How many gallons of blood are estimated to be pumped by the heart each day?
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Explain the different levels of cellular organization.
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There are 5 different levels of cellular organization.

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Explanation:

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Baby jake is born with a narrowing of the muscular ring that controls the outflow of food from the stomach. what is the name of
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2 years ago
How do you put biogeochemical cycle in a sentence?
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5 0
3 years ago
If you count 52 purple rough corn kernels and 50 yellow smooth corn kernels how many people smooth corn kernels should you expec
Vitek1552 [10]

Answer:

17

Explanation:

In corn,

Smooth kernel (S) is dominant to rough kernel (s)

Purple kernel (P) is dominant to yellow kernel (p)

Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.

The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.

Here,

Purple rough (P_ss) = 52

Yellow smooth (ppS_) = 50

Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.

If the total progeny was z, 3/16*z = 50

z = (50*16)/3 = 267

Total progeny = 267 kernels

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So approximately 17 corn kernels will be yellow and rough.

8 0
2 years ago
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