A. only men have them a male Carry one X and one Y
It is a Stop Codon, so B. Your answer is B.
C is your answer :)
Hope it helps!
Answer:
But hinnies and mules can't have babies of their own. They are sterile because they can't make sperm or eggs. They have trouble making sperm or eggs because their chromosomes don't match up well. ... A mule gets 32 horse chromosomes from mom and 31 donkey chromosomes from dad for a total of 63 chromosomes
