2nd choice is the correct one
Answer:
a. Centromere
A centromere is a specialised DNA sequence of a chromosome that links pair of sister chromarids (a dyad)
What substances are involved in controlling the production of sperm and eggs in humans? Hormones.
Correct Answer: D Shingles
this question was asked a week ago so you probably have moved or found an answer.. but nonetheless!
Shingles is a <u>viral infection</u> caused by the varicella-zoster virus (the same virus that causes chickenpox).
All the other disorders are caused by a bacteria.