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Traits

In humans, if...

Question

In humans, if gene B gives brown eyes and gene b gives blue eyes. What will be the colour of eyes of the persons having the following combination of genes?

A

Bb

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B

bb

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C

BB

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D

All of the above

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Solution

The correct option is D All of the above
In case of Bb : The person will have brown eyes as the dominant trait will be expressed.
In case of bb : There is no dominant trait so the person will have blue eyes.
In case of BB : Both the alleles are of brown eyes so the person will have brown eyes.

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Similar questions

Q. In humans, if gene B gives brown eyes and gene b gives blue eyes. What will be the colour of eyes of the persons having the following combination of genes?
(a) Bb
(b) bb
(c) BB

In humans , if gene B gives brown eyes and gene b gives blue eyes. What will be the colour of eyes of the persons having the following combination of genes ?

(a) Bb (b) bb (c) BB

Q. (a) What is a 'gene'? Explain the meaning of dominant genes and recessive genes with examples.

(b) In humans, if gene B gives brown eyes and gene b gives blue eyes, what will be the colour of the eyes of the persons having the following combinations of genes?
(i) BB (ii) bb (iii) Bb

(a) E is the gene for brown eye colour and e is the gene for blue eye colour. Which gene is (i) recessive, and (ii) dominant?

(b) Both father and mother have the genes Ee in their cells. What colour are their eyes?

(c) Which combination of genes in the zygote will produce children with blue eyes?

(d) Which combination of genes in the zygote will produce children with brown eyes?

Q. If B is the gene for brown eyes and b is the gene for blue eyes, which combination of genes in the zygote will produce children with blue eyes ?

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