In oats, early maturity dominates over late maturity. a heterozygous plant was crossed

In oats, early maturity dominates over late maturity. a heterozygous plant was crossed with a late-maturing plant, 28 plants were obtained. Find F1 and F2

Let’s designate the gene for early maturity of oats as P, then the gene for late maturity of oats will be designated as p.

Heterozygous PP oats will be early maturing. Such oats will produce two types of germ cells – p and P.

Late maturing oats will be pp, because for the phenotypic realization of the late maturity trait, the oat genotype must be homozygous for this gene. Such oats will produce germ cells of the same type – p.

In the F1 offspring, we get the following options:

early ripe heterozygous oats (Pp) – 50%;

late ripening homozygous oats (pp) – 50%.

If we cross hybrid oats Pp with each other, we get F2 offspring, including:

early ripe homozygous oats (PP) – 25%;

late-ripening homozygous oats (pp) – 25%;

early maturing heterozygous oats (Pp) – 50%.