In Noombats, yellow bellies (Y) are dominant er green bellies (y). Complete a Punnett Square to show a cross between a purebred yellow-bellied (homozygous) noombat and a noombat that is hybrid (heterozygous) for belly color. What is the probability that the parents will have yellow-bellied offspring? 25% 50% 75% 100%

Option D, 100 %

Explanation:

Given -

Yellow bellies (Y) are dominant over green bellies (y)

Genotype of parents

Purebred yellow-bellied (homozygous) noombat - YY

Noombat that is hybrid (heterozygous) for belly color - Yy

The following offspring will be produced

YY * Yy

YY, Yy, YY, Yy

Out of four, all the offspring will be yellow-bellied offspring. However, two Noombats will be homozygous for yellow belly while the remaining would be heterozygous for the yellow belly

Thus, option D 100% is correct