Assume you have isolated an unknown virus. This virus has a single, positive sense strand of RNA, and possesses an envelope. To which group does it most likely belong?
A) herpesvirus
B) picornavirus
C) retrovirus
D) togavirus
E) papovavirus
D
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What muscular disorder is characterized by a progressive weakening of the muscle cells due to a faulty gene on the X chromosome?
a. Polio b. Tetanus c. Muscular dystrophy d. Amyotrophic lateral sclerosis e. Botulism
If a child develops an anterior pituitary tumor that reduces LH and FSH production, the child will
A) not develop gonads. B) produce excess testosterone or estrogen. C) experience delayed or disrupted puberty. D) develop secondary sexual characteristics before puberty. E) have decreased production of GnRH.
Which term-definition pair is mismatched?
A. Coagulase - dissolves fibrin clots B. Capsule - antiphagocytic factor C. Leukocidins - damage white blood cells D. Fimbriae - adherence to substrate E. Hemolysins - damage red blood cells
Which reaction is endergonic?
a. protein synthesis b. digestion c. fire d. respiration e. movement