Which of the following techniques is most commonly used to separate DNA molecules by size?
A) PCR
B) RFLP
C) Chromatography
D) DNA sequencing
E) Gel electrophoresis
E
Biology & Microbiology
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A nucleic acid contains uracil, allowing you to conclude that:
A. this nucleic acid is DNA. B. this nucleic acid is RNA. C. this nucleic acid could be either DNA or RNA.
Biology & Microbiology
When under attack, ciliates can eject sticky threads
called a. vacuoles. b. trichocysts. c. cysts. d. pseudopods. e. pellicles.
Biology & Microbiology
Which of the following has the LEAST general acceptance?
A. Theory. B. Law. C. Hypothesis. D. Theory, law, and hypothesis have equal acceptance.
Biology & Microbiology
Which of the following is the most diverse group of plants?
a. angiosperms b. ferns c. bryophytes d. nontracheophytes e. gymnosperms
Biology & Microbiology