Steroids ____
a. have no fatty-acid component
b. consist of three rings
c. have the same type of functional groups attached to them
d. are a specialized type of wax
e. are a specialized type of phospholipid
ANSWER: a
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Your mother has albinism, which is a recessive trait. Your father has cystic fibrosis, which is also a recessive trait
You discover that your new father-in-law has albinism and cystic fibrosis. If neither you nor your spouse has either albinism or cystic fibrosis, what are the odds that your first child will have either albinism or cystic fibrosis, but not both?
a. 1/16 b. 3/8 c. 1/8 d. 1/4 e. 0
The enzyme that forms a transport channel in the inner membrane of the mitochondria and uses the potential energy of the proton gradient to form ATP is the
A. FADH2 synthase. B. hydrogen synthase. C. NADH synthase. D. ADP synthase. E. ATP synthase.
Lactose intolerance is caused by a(n) ____
a. nucleotide substitution that prevents lactose production b. variant manifestation of galactosemia c. accumulation of galactose-1-phosphate d. inability to digest lactose e. excess in lactose production
Colchicine is a drug that:a
arrests cells in mitotic telophase. b. stimulates meiosis. c. prevents DNA replication. d. arrests cells in mitotic metaphase. e. prevents cells from entering prophase