How do mutagens affect chromosomes? AThey change the chemical composition of DNA, which can affect the structure or number of ch
romosomes. They attack the inner part of the chromosome, changing the sequence of DNA in the centromere of the chromosome. They alter the size of the chromosome, which affects the way a chromosome passes genetic traits from parents to offspring.
Explanation: It is A because the television gives off light and sometimes that could heat up the tv and it is sound because obviously television makes sounds because of the volume :) hopefully that helps.
Low levels of estrogen is a sign that the ovaries of a woman are beginning to fail. This is a common occurrence when one is at menopausal stage. Estrogen and progesterone naturally decrease and eventually stops the menstrual cycle. Hope this helped.
