CBSE Class 10 Science 2023 Delhi Set 1 | Question 18

CBSE Class 10 Science 2023 Delhi Set 1

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Question : 18

Total: 39

Assertion (A) : In humans, if gene (B) is responsible for black eyes and gene (b) responsible for brown eyes, then the colour of eyes of the progeny having gene combination Bb,bb or BB will be black only.
Reason (R) : The black colour of the eyes is a dominant trait.

Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
(A) is true, but (R) is false.
(A) is false, but (R) is true.

Solution:

The bb combination will give brown eyes. As Black eyes (B) is a dominant trait.

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