A recessive allele is expressed in

Question

A recessive allele is expressed in (A) heterozygous condition only (B) homozygous condition only (C) F3 generation (D) both homozygous and heterozygous conditions

Tardigrade Admin · Accepted Answer

The factor of an allelic or allelomorphic pair which is unable to express its effect in the presence of its contrasting factor in a heterozygote is called recessive factor or allele, e.g., the allele 't' in hybrid tall pea plant Tt. The effect of recessive factor becomes known only when it is present in the pure or homozygous state, e.g., tt in dwarf pea plant.

Q. A recessive allele is expressed in

heterozygous condition only

homozygous condition only

$F_{3}$ generation

both homozygous and heterozygous conditions

Q. A recessive allele is expressed in

heterozygous condition only

homozygous condition only

F3​ generation

both homozygous and heterozygous conditions

$F_{3}$ generation