5) A white flower is crossed with a homozygous red flower (red is dominant).

The Punnett square will look like this:

Rw Rw

Rw Rw

Explanation:

In order to have a white flower, both alleles must be recessive. A homozygous red flower must have two dominate alleles.

Well use (w) for white, and (R) for red.

The parent alleles are:

1 - ww

2 - RR

(see picture)

thats not even an aswer choice

a bird that nests only in a particular tree species.