A cell will stay in which of the following for most of its life?
a. the S phase
b. the G2 phase
c. interphase
d. prophase
c. interphase
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If you repeated the Hershey and Chase experiment designed to determine the molecule of heredity using a virus with RNA as its genetic material, you would expect that
A) 35S-labeled protein would be transferred to infected cells. B) 32P-labeled DNA would be transferred to infected cells. C) 32P-labeled RNA would be transferred to infected cells. D) 32P-labeled RNA would be transferred to phage ghosts. E) 35S-labeled RNA would be transferred to infected cells.
List and briefly explain three properties of plasmids that allow them to be used as effective DNA
cloning vectors. What will be an ideal response?
One map unit is equal to a recombination frequency of
A) 1%. B) 5%. C) 10%. D) 50%. E) 100%.
Which pairing between evolutionary evidence and a biological discipline is NOT correct?
a. pesticide resistance: historical biogeography b. forelimbs of all four legged vertebrates are homologous: comparative morphology c. short tails of African and Asian monkeys: historical biogeography d. gill pouches in embryos of four-limbed vertebrates: comparative embryology e. species on islands often resemble species on the mainland: historical biogeography