Question #0ab39
1 Answer
Sep 21, 2017
The answer is A.
Explanation:
Absolute lethality is not only caused by linked genes, and neither do linked genes always cause absolute lethality. Take for example mouse body colour. In mice, yellow is the dominant body colour and a mouse having genotype Yy would have yellow body colour and will live. One with yy would be brown body colour will also live but the one with YY also yellow bodied will die. In this case no other gene is linked, still it is lethal.
Persons suffering from phenylketonuria do suffer from mental retardation due to accumulation of phenylalanine.
F2 ratio in co dominance and incomplete dominance is same and is 1:2:1.
The sex of male drosophila depends on the y chromosome, this is a fact.
