A dominant allele is expressed in homozygous as well as heterozygous condition. A recessive trait is only expressed in the homozygous condition.
A gene is said to be dominant if:
Held on 30 Apr 2002 · Verified 9 Jul 2026.
it expresses its effect only in the homozygous stage
it expresses its effect only under heterozygous condition
it expresses its effect both under homozygous and heterozygous conditions
it never expresses its effect under any condition
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Work through every NEET UG Principles of Inheritance and Variation PYQ, year by year.