The gray matter that surrounds cells 3, 4, 5 and 6 indicates the
a. primordial germ cell.
b. spermatogonium.
c. Leydig cell.
d. Sertoli cell.
e. Ballack cell.
D
You might also like to view...
Which of the following is an example of a subunit vaccine?
A) The surface protein of a virus is used to make the vaccine. B) The virus is exposed to ultraviolet light. C) The virus is exposed to formaldehyde. D) The virus is grown in a host other than humans and thus grows more slowly than normal.
Repressors
A. are involved in negative control. B. are involved in positive control. C. always bind to the promoter. D. bind or do not bind to the operator depending on their shape (conformation). E. are involved in negative control AND bind or do not bind to the operator depending on their shape (conformation).
Which of the following is NOT an enteric?
A) Salmonella B) Shigella C) Escherichia D) Enterobacter E) Campylobacter
The decimal reduction time is the time required to kill all the microbes in a given sample.
Answer the following statement true (T) or false (F)