Methylation of histone proteins promotes _____
a. transcription
b. translation
c. binding of transcription factors
d. condensation of DNA
e. differentiation
ANSWER: d
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Which of the following represents the expected genotypes of an F2 generation consisting of 8 individuals from an initial cross of a true-breeding black BB. rabbit and a true-breeding white bb. rabbit?
A. 8 progeny: 8 BB, 0 bb, 0 Bb B. 8 progeny: 4 BB, 4 bb, 0 Bb C. 8 progeny: 2 BB, 2 bb, 4 Bb D. 8 progeny: 0 BB, 0 bb, 8 Bb
Homeostasis is ultimately regulated by:
a. the brain. b. the endocrine glands. c. the oil glands. d. the exocrine glands. e. the circulatory system
In genetics, what are palindromes?
A) the types of DNA sequences that are cut out by restriction enzymes B) the A-T complementary bases of DNA C) the C-G complementary bases of DNA D) the A-U base pairing between DNA and mRNA
Why was ?-carotene inserted into GM golden rice?
A) to better synthesize proteins in the body B) to see better under low light conditions C) to more efficiently digest his or her starchy diet D) to better synthesize vitamin A in the body