What type of bonding holds one strand of DNA to the complementary strand of DNA?
A.
Covalent
B.
Hydrogen
C.
Disulfide
D.
Ionic
B
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Larval salamanders tend to consume their insect prey whole. Thus, they are __________
a. bulk feeders b. filter feeders c. fluid feeders d. omnivores
If a restriction endonuclease cuts a circular DNA three times, how many fragments should there be
after the DNA is subjected to electrophoresis through an agarose gel?
a. 1 b. 2 c. 3 d. 4 e. 5
An organism has been found to contain a defective form of photolyase. What function might be impaired in this organism?
A. Recognition of damaged DNA by the UvrABC complex B. Repair of DNA damage caused by UV light C. Stabilization of single-stranded DNA during DNA replication D. Lengthening of the tips of chromosomes
Columnar epithelium is found lining the
A. stomach. B. capillary walls. C. glands. D. mouth.