(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 ?

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Solution

(i) e (blue eye) is recessive; (ii) E (brown eye) is dominant.

Because brown eye colour is dominant while blue eye colour is recessive.

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Similar questions

(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?

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

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

Q. (a) E is the gene for brown eye colour and 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?

Suppose eye colour of humans is governed by one gene. If black eye colour is dominant over green eye colour, then which letter correctly represents the dominant allele and the recessive allele respectively?

Q. The gene for blue eyes(b) is recessive to gene for brown eyes(B). The following figure is given:
what is the % of individuals with brown eyes and blue eyes respactively?

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Monohybrid Cross

Standard X Biology

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(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 ?

(i) e (blue eye) is recessive; (ii) E (brown eye) is dominant. Because brown eye colour is dominant while blue eye colour is recessive.

(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 ?

(i) e (blue eye) is recessive; (ii) E (brown eye) is dominant.

Because brown eye colour is dominant while blue eye colour is recessive.