<h2>Question:</h2>
Sofia, a scientist, wants to change the DNA of a sexually reproducing organism and have the
new DNA present in every cell of the organism. In order to do this after fertilization, she would
change the DNA in which of the following?
A. Zygote
B. Placenta
C. Testes of the father
D. Overuse of the mother
<h2>Answer :</h2>
C. <em>Testes of the father</em>
<em>ありがとうございました</em><em>!</em>
<h2>
Explanation:</h2>
<em>Men</em> determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY)
