Answer: the answer is A
Explanation: i just did it
It would be 50 percent i think- so im learning this in school and we used punnet squares- so a Yy and Yy have offspring it would be 50 percent chance that it would be heterozygous too
I need more to answer the question
Using a different kind of bond called love
just kidding its a hydrogen bond
The brain stem is the answer that you are looking for
