D is the answer your welcome :)
Answer:
Kaya was not tissue typed prior to her surgery, and her body is mounting an immune response.
The father's father donates only the Y chromosome, not the X chromosome. The father's mother gives him his X chromosome.
Therefore, the father's father does not pass on any of the genetics of his X chromosome
Answer: I am pretty sure that the answer is A. For me A had "The substrate was used up by the time the temperature reached 60°C".
Explanation: Both A's have similar questions, I'm really sorry if its correct