Question

What are the possible genotypes and phenotypes in the F1 and F2 generations of a cross involving parents homozygous for axial and terminal alleles, where axial is dominant to terminal?

a) F1 Genotype: Aa, Phenotype: Axial; F2 Genotype: AA, Aa, aa, Phenotype: Axial, Terminal
b) F1 Genotype: AA, Phenotype: Axial; F2 Genotype: AA, Aa, Phenotype: Axial
c) F1 Genotype: Aa, Phenotype: Terminal; F2 Genotype: AA, Aa, aa, Phenotype: Axial, Terminal
d) F1 Genotype: aa, Phenotype: Terminal; F2 Genotype: AA, Aa, aa, Phenotype: Terminal

Answer 1

The possible genotypes and phenotypes in the F1 and F2 generations of a cross involving parents homozygous for axial and terminal alleles, where axial is dominant to terminal, are explained.

Step-by-step explanation:

In a cross involving parents homozygous for axial and terminal alleles, where axial is dominant to terminal, the possible genotypes and phenotypes in the F1 generation are Aa genotype and axial phenotype. In the F2 generation, the possible genotypes are AA, Aa, and aa, and the possible phenotypes are axial and terminal.