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Ahat [919]
3 years ago
15

Which best describes biogeographic isolation?

Biology
2 answers:
Effectus [21]3 years ago
8 0

It occurs only through geographic forces.

Biogeographic isolation can be described as the separation of members of the same species through geographical or biological forces. The group includes species of organisms that can breed and can produce offspring that are also capable of breeding.

kicyunya [14]3 years ago
7 0

ANSWER IS D (:

It occurs only through geographic forces.

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3 years ago
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Blue flower is dominant to yellow flower. Tall plant is dominant to short. Cross BbTt * BbTt. What precenetage of the offsprings
shtirl [24]

Answer:

The correct answer would be - 25%.

Explanation:

It is given that the Blue flower is dominant over the yellow flower which means Blue is represented by allele B here and allele b for yellow and Bb is a heterozygous case with a blue phenotypic character. Similarly, the Tall plant is dominant over short and represented by T and t respectively.

BbTt is a heterozygous condition and a cross with itself will produce :

Gametes: BT Bt bT and bt

          BT       Bt       bT       bt

BT     BBTT   BBTt   BbTT   BbTt

Bt      BBTt    BBtt    BbTt   Bbtt

bT     BbTT   BbTt    bbTT   bbTt

bt      BbTt     Bbtt    bbTt     bbtt

Here 4 out of 16 offspring are heterozygous for both traits represented by bold alphabets. Therefore the correct answer is 25%

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3 years ago
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I believe the answer is B) Prophase
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Answer:

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Explanation:

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What is the answer?
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