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

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
An allele is said to be dominant if
  • A
    It is expressed only in heterozygous combination
  • B
    It is expressed only in homozygous combination
  • ✓
    It is expressed in both homozygous and heterozygous condition
  • D
    It is expressed only in second generation
✓

Answer

Correct option: C.
It is expressed in both homozygous and heterozygous condition
c
(c) Upper or capital letter is conventionally used to designate a dominant gene, e.g., $T$ $(tallness \,in\, pea)$, $R$ $(round\, seed \,in \,pea)$.

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