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STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
Recessive characters are expressed
  • ✓
    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
✓

Answer

Correct option: A.
Only when they are present on $X$ chromosomes of male
a
(a)Recessive characters are expressed in the subsequent generation only when present on the $X$ chromosome of male.

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