For a gene to be transcribed, the RNA polymerase has to bind to a(n) ________ sequence of nucleotides on the DNA.
A. initiator
B. repressor
C. elongation
D. operon
E. promotor
Answer: E
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By age eighty, nearly half of the muscle mass in the body has atrophied
Answer the following statement(s) true (T) or false (F)
How are giant kelp and sea grass alike?
a. both contain chlorophyll a b. both utilize gas-filled spaces for buoyancy c. both lack conductive tissues and rely on diffusion to transport molecules manufactured by photosynthesis d. both a and b e. both b and c
Which of the lakes in the accompanying figure may experience turnover?
a. 2 and 4
b. 2 and 3
c. 3 and 4
d. 1 and 2
e. 1 and 3
Chronic myelogenous leukemia is caused by a translocation that creates
A) a proto-oncogene. B) a fusion protein that acts like a transcription factor, activating cell cycle control genes. C) a protein that increases growth factor production. D) a fusion protein that deregulates the cell cycle of white blood cells.