Answered

A test cross with an organism with a homozygous recessive genotype

results in 50% of the offspring exhibiting the recessive trait.

What is the genotype of the test-cross

parent?

I. Homozygous recessive

II. Homozygous dominant

III. Heterozygous

AI only
BII only
CIII only
DI or III
EII or III

Verified Answer :

The answer is heterozygous.

If it was crossed with homozygous dominant, then 100% of the offspring would show the dominiant trait. If it was homozygous recessive 100% of the offspring would have the recessive trait

I say C. III ONLY, because if you put this all out on a punnet chart that is the only one that comes out with a correct outcome, 50%, so I say it is heterozygous only, answer choice C!

Hope this helps, if not, comment below please!!!!

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