Which of the following is a correct pairing of RecBCD subunit to its activity?
A. RecB ? 5'-3' helicase
B. RecD ? nuclease
C. RecD ? 3'-5' helicase
D. RecB ? chi binding
E. RecC ? has a "pin" structure that helps separate strands.
E
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The protein dystrophin is produced ____________________
a. at the ribosomes in the cytoplasm b. in the nucleus of the cell c. in the Golgi complex of the cell d. in lysosomes
An __________ consists of an array of organisms along with nonliving components of their
environment. Fill in the blank(s) with the appropriate word(s).
Amino acids are linked by what kind of bonds to
form the primary structure of a protein? a. disulfide b. hydrogen c. ionic d. peptide e. none of these
What effect is warming predicted to have on migration behavior?
A) Birds will depart for migration earlier and return later. B) Birds will depart for migration later and return later. C) Birds will depart for migration earlier and return earlier. D) Birds will depart for migration later and return earlier.