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?

G and B

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g and B

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B and b

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b and g

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Solution

The correct option is C
B and b

As black eye colour is dominant over green eye colour, the dominant allele is represented by the first letter of the dominant character in capitals (B) and the recessive allele is represented by the first letter of the dominant character in small letter (b).

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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

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. If black eye colour is dominant over green eye colour, which letters correctly represent the dominant and recessive alleles respectively?

Q. Assume that hair colour in humans is governed by a gene. If black hair are dominant over brown hair, then which letter correctly represents the dominant and the recessive trait respectively?

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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?

The correct option is C B and b As black eye colour is dominant over green eye colour, the dominant allele is represented by the first letter of the dominant character in capitals (B) and the recessive allele is represented by the first letter of the dominant character in small letter (b).

The correct option is C
B and b

As black eye colour is dominant over green eye colour, the dominant allele is represented by the first letter of the dominant character in capitals (B) and the recessive allele is represented by the first letter of the dominant character in small letter (b).