Question

A tall purple flower pea plant is allowed a self pollinate the phenotype ratio of the resulting offspring is 9:3:3:1 what phenotype oppeared once out of every 16 offspring ​

Answer 1

The phenotype which will appear once out of every 16 offspring will be the recessive phenotype for two traits at a time.

Explanation:

• The results 9:3:3:1 are seen in the case of a dihybrid cross.

• In a dihybrid cross, two traits are studied at a time.

• For instance, pea plant height and colour of the pea plant are studied in a single cross.

• The ration will be 1 for a recessive trait such as small height and a colour other than purple for the pea plants.

• The ration for both the dominant phenotypes to occurs in homozygous state will be 9.