The short nucleotide sequence that base-pairs with any complementary sequences in DNA during PCR is a(n) ____
a. primer
b. exon
c. intron
d. restriction enzyme
e. polysome
ANSWER: a
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In mammals, gestation is defined physiologically as the time from _____ to birth.
A. fertilization B. implantation C. blastocyst formation D. ovulation E. the first missed menstruation
How do dormancy and hibernation differ?
a. Dormancy is a response to stressful environmental conditions, while hibernation can occur at any time. b. Hibernation is a seasonal strategy, while dormancy is a response to any stressful environmental condition. c. During dormancy, activity is greatly reduced, but the same is not true of hibernation. d. Hibernation is a temporary condition, while dormancy usually lasts for longer periods.
At what checkpoint(s) does the cell arrest in response to DNA damage?
A. spindle B. G1/S C. G1/S and G2/M D. G2/M and spindle E. G2/M
Intravasion refers to:
a. ability of a cell to move out of a blood vessel b. ability of a cell to move into of a blood vessel c. ability of a cell to move d. all of the above