A) it expresses its effect only in homozygous state
B) it expresses only in heterozygous condition
C) it expresses in both homozygous and heterozygous conditions
D) it is never expressed in any condition
Correct Answer: C
Solution :
A dominant gene would lead to the expression of its phenotype irrespective of the fact whether its allelic gene is dominant or recessive. eg, R gene which is responsible for red colour, is dominant over r gene which is responsible for white colour. Then R will express itself in homozygous ie, RR as well as in heterozygous ie, Rr conditions.
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