Question

The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1 and F2 genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.

Short answer

F2 generation will have AA, Aa, or aa as the expected genotypes.

Step-by-step solution

Step. 1 Introduction 

A heterozygous individual usually comprised of two genotypes, one being dominant and another recessive.

Step. 2 Explanation

F2 might have AA, Aa, or aa genotypes, which correlate to axial, axial, and termination characteristics, accordingly. As axial appears dominant, that gene would've been denoted with the letter A. F1 will be homozygous Aa with an axial appearance.