Question

@hectoroftroy
Punnett Squares!

Answer 1

The flower of the Rosa verdus can be either green (dominant) or red. Draw a Punnett square for the cross between two of the Rosa verdus, which are heterozygous flower color. What is the ratio of genotypes for the offspring? What is the ratio of phenotypes of the offspring?

Answer 2

So it tells you that there are two possibilities - green and red. And it tells you that green is dominant. It tells you that there is a cross between two heterozygotes. Specifically, that both parents have one allele of each kind. Aa x Aa if you like. Make sense so far?

Answer 3

yes.

Answer 4

So next you set up your Punnett square. And then you fill in the alleles. Try it.