Gel electrophoresis separates DNA fragments based on:
A. nucleotide sequence.
B. length.
C. mutations.
D. replication rate.
E. primers.
B
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Which of the following molecules would you predict moves through a lipid bilayer most rapidly?
A. C6H12O6 B. CH3OH C. C2H5OH D. C4H10 E. NH2SO2CH3
Following transplant surgery, a patient is given ________ drugs that block the action of the immune response against the transplanted organ
Fill in the blank(s) with correct word
Which of the following is responsible for the perception of smell?
A) Olfactory receptors B) Ganglion cells C) Corpuscles D) Olfactory bulb E) Optic nerve
In the early development of an amphibian embryo, an important "organizer" is located in the
A) neural tube. B) notochord. C) archenteron roof. D) dorsal ectoderm. E) dorsal lip of the blastopore.