If you worked at a factory that required shift work at night and you slept during the day, which hormone's production would be altered?
a. thyroid hormone
b. melatonin
c. calcitonin
d. cortisol
e. insulin
b
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Which of the following diseases is a synonym for ringworm infection of the nails?
A) tinea barbae B) tinea cruris C) tinea nigra D) tinea unguium
How many genes does a human X chromosome carry?
a. 100 b. 1,400 c. 2,800 d. 14,000 e. 28,000
At the beginning of each ovarian cycle, which one of the following hormones causes the development of a primary oocyte?
A) estrogen B) LH C) prolactin D) progesterone E) FSH
Which of the following describes the composition of a nucleotide?
a. a five-carbon sugar, a phosphate group, and one of four amino acids b. a five-carbon sugar, a nitrogenous base, and one of twenty amino acids c. a five-carbon sugar, a phosphate group, and one of four nitrogenous bases d. a six-carbon sugar, a phosphate group, and one of twenty amino acids