Question

Choose the correct answer from the alternatives given.

What will be the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus?

• A. 3:1
• B. 1:2:1
• C. 1:1
• D. None of these

Answer 1

Answer: (C)

1:1

$F_1$ or first filial or progeny is the generation of hybrids produced from across between the genetically different individuals called parents. A cross between homozygous and heterozygous parents for a single locus will produce 1: 1 ratio of phenotypic features in $F_1$ generation.