Question: A dominant allele A produces blue petals in a certain azalea species, while its recessive allele …

A dominant allele A produces blue petals in a certain
azalea species, while its recessive allele a produces red
petals. Plants trisomic for the chromosome bearing this color locus
will produce functional female gametes that are n and
n+1, but only n pollen is viable.

1. If an AAa plant is fertilized by pollen from an AAa
plant, what would the blue:red petal ratio be among the progeny
plants?

2. If an Aaa plant is fertilized by pollen from an
Aaa plant, what would the blue:red petal ratio be among the progeny
plants?

3. If an AAa plant is fertilized by pollen from an Aa plant,
what would the blue:red petal ratio be among the progeny
plants?

4. If an Aaa plant is fertilized by pollen from an Aa plant,
what would the blue:red petal ratio be among the progeny
plants?