Viroids ____
a. are more complex than viruses
b. have large DNA genomes
c. encode their own polymerase for nucleic acid replication
d. cause diseases in plants
e. infect animal cells
ANSWER: d
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Steroid hormones are derived from ____
a. glucose b. cholesterol c. messenger RNA d. cyclic AMP e. glycogenANSWER: b
The enzyme responsible for producing DNA copies of HIV RNA molecules is ________________. Fill in the blank(s) with the appropriate word(s)
Which of the following maintains the corpus luteum and stimulates it to continue to produce the hormone progesterone?
A) human chorionic gonadotropin B) progesterone C) estrogen D) testosterone
In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after endocytosis?
A) on the outside of vesicles B) on the inside surface of the cell membrane C) on the inside surface of the vesicle D) on the outer surface of the nucleus