Question

A tall plant crossed with a short one produced offspring, of which about half are tall and half are short. What are the genotype of the two parents?

Answer 1

Answer:

Rr x rr

Explanation:

Let's say

RR is a tall plant.

Rr is tall

& rr is a small plant

The only genotypes you can get to make two tall and two short is if you use a  hetero pair and a same ressesive (rr) genes.