Who first confirmed that the replication of DNA was semiconservative?

a. Chargaff and Hershey
b. Watson and Crick
c. Avery and Griffith
d. Meselson and Stahl
e. Watson, Crick, and Wilkins


D

Biology & Microbiology

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Which superkingdom contains members that are responsible for forming red tides?

A. Amoebozoa B. Archaeplastida C. Stramenopila D. Alveolata E. Excavata

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Why is wood a remarkably difficult material to decompose? Select all correct choices

A. Wood contains cellulose. B. Wood contains lignin. C. Most bacteria can't break down lignin. D. Most fungi can't break down lignin.

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Darwin developed his theory of evolution without any knowledge of genetics

a. True b. False

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The earliest known flowering plants date to the

A) Cambrian (early Paleozoic era). B) Triassic (early Mesozoic era). C) Cretaceous (late Mesozoic era). D) Tertiary (early Cenozoic era).

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