When does replication of DNA occur?

a. during the S phase
b. during the G1 phase
c. during the prophase
d. during the G0 phase


Answer: a. during the S phase

Biology & Microbiology

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Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?

A) as a pentose B) as a hexose C) as a monosaccharide D) as a disaccharide E) as a polysaccharide

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Gene flow has a greater effect on large populations than on small populations

a. true b. false

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The source of cyanide as a chemical pollutant is ________

A) wood preservative B) petroleum products C) pulp and paper bleaching D) mining processes E) plastic manufacturing

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What controls the shape of the lens?

A. pupil B. iris C. fovea centralis D. ciliary muscle E. cornea

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