Which of the following herpesvirus infections would be potentially most serious?
a. a whitlow
b. ocular herpes
c. shingles
d. cytomegalovirus in fetuses
Ans: d. cytomegalovirus in fetuses
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Scientists at the biotechnology company Genentech created the first recombinant DNA product for use in humans. Approved by the Food and Drug Administration in 1982, this product was ________
A) a gene chip B) chymosin C) insulin D) human growth hormone E) erythropoietin
Muscle soreness several days after exercise is an indication that some sarcomeres were permanently damaged
Indicate whether the statement is true or false
Generally, vaccines are used to stimulate the immune system by providing antigens of potential pathogens. What is the typical composition of a vaccine?
A) genes encoding for virulence factors B) RNA from bacteria C) naked DNA D) inactivated or attenuated viruses
Which gas is used by plants to produce molecules that make up plant structures?
A) oxygen B) methane C) chlorophyll D) carbon dioxide E) NADPH