Gardasil ____
a. is a vaccine against two types of human papillomavirus (HPV)
b. is most effective in women beyond child bearing age
c. contains live viruses
d. prevents cervical cancer shown to be caused by HPV infection
e. causes warts on the hands and feet
ANSWER: d
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In order for a tumor cell to metastasize, which of the following would you expect to happen?
A. a decrease in cadherin expression and an increase of integrin expression B. an increase of cadherin expression and a decrease in integrin expression C. an increase in both cadherin and integrin expression D. a decrease in both cadherin and integrin expression
Small circular pieces of DNA that are not associated with the bacterial chromosome are called _______
A. heteroduplex B. plasmids C. relaxosome
If the concentration of thyroid hormone is
high,
a. the secretion of thyroid-releasing hormone is inhibited. b. the secretion of thyroid stimulating hormone is increased. c. calcitonin production is increased. d. resting metabolism decreases. e. more than one of these occurs
What molecule is composed only of chains and rings of hydrogen and carbon?
A) carbohydrate B) hydrocarbon C) polypeptide D) polysaccharide