Adult T-cell leukemia is thought to be caused by
A. parvoviruses.
B. herpesviruses.
C. picornaviruses.
D. retroviruses.
Answer: D
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The chromosomal theory of inheritance was first proposed by ___________
A. Mendel B. Boveri and Sutton C. Darwin and Mendel D. Weismann and Boveri
The top (proximal end) of the femur joins to the:
a. patella b. tibia c. pectoral girdle d. pelvic girdle e. tarsals
RNA polymerase binds to the
A. promoter sequence. B. start codon. C. termination sequence. D. regulation sequence.
Each summer, a large "dead zone" devoid of fish and other animals develops where the Mississippi River flows into the Gulf of Mexico. What causes this?
A) Large quantities of fertilizer run off from Midwestern farm fields into the Mississippi River. B) Global warming is making the river water too hot for the fish to tolerate. C) High levels of pesticides are used in the Mississippi River basin. D) There are high levels of mercury in the river water. E) Acid rain makes the gulf's water too acidic to support fish.