Question

In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive (y). A plant with genotype Yy and a plant with YY are crossed. If they have four offspring, how many would you predict would have red leaves?

Answer 1

· A plant with genotype Yy and a plant with Yy are crossed. If they have four offspring, how many would you predict would have red ...

Answer 2

Given details:

Yellow leaves are dominant (Y).

Red leaves are recessive (y).

Genotype to be crossed are Yy and YY.

Explanation:

We can use Punnett's square to determine the generations of the given two genotypes.

In the first filial generation, the offsprings will be as follows.

YY, YY, Yy,Yy

Based on dominancy, the phenotypes are Yellow in all the above combinations. (i.e) 100 % Yellow colored leaves.

So, all the four offsprings are yellow.

It is predicted that number of the offspring with red colored leaves will be 0.