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4.Principles of Inheritance and Variation
medium
Recessive characters are expressed
A
Only when they are present on $X$ chromosomes of male
B
Only when they are present on $X$ chromosomes of female
C
On any autosome
D
On both the chromosomes of female
Solution
(a)Recessive characters are expressed in the subsequent generation only when present on the $X$ chromosome of male.
Standard 12
Biology
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medium