What is the function of the MutS protein in methyl-directed mismatch repair?
A. To excise the mismatched basepair.
B. To find mismatches.
C. To directly bind the DNA polymerase.
D. To make a cut in the nonmethylated DNA strand.
E. To digest the nonmethylated DNA strand.
B. To find mismatches.
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Protein structure can be predicted nonexperimentally by ____
a. microscopy b. nuclear magnetic resonance c. X-ray crystallography d. computer algorithms based on amino acid chemistry e. electrophoresis
The flower structure that consists of the male reproductive parts is the
A. carpel. B. stigma. C. corolla. D. calyx. E. stamen.
What is the meaning of the group name Stramenopila?
A. “Needle-haired” B. “Straw haired” C. “Short flagella” D. “Black haired” E. “White haired”
One major difference between bacterial and eukaryotic RNA polymerase is that
a. prokaryotes have several RNA polymerases. b. eukaryotic RNA polymerase can polymerize RNA in the 3? to 5? direction. c. prokaryotic RNA polymerase recognizes several different promoters. d. eukaryotic RNA polymerase has only one polypeptide. e. eukaryotic RNA polymerase cannot read DNA to find the promoter sequence.