Question

outline a project which aims to find the dominant coat color in dogs.
( take male dog with black coat color and female dog with white coat color or vice versa)
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Answer 1

ANSWER

Coat colour in dogs is governed by a variety of genes. At least 11 genes have been identified that influence the colour of coat in a dog. A dominant gene is a gene that is expressed in both homozygous as well as heterozygous conditions, whereas recessive gene is only expressed in homozygous condition.

Let us consider, one parent is homozygous black (BB) and another parent is homozygous brown (bb). Cross between the two parent produces the offspring with the genetic make-up: Bb. Now we don't know whether Black is dominant or brown is dominant. By observing the off-springs produced are we can say which one is a dominant trait. If the F1 generation comprisess of black we can say black is dominant and if it is brown then we can say brown is dominant.

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