DNA was first described by _____ in 1869

a. Johannes Miescher
b. Frederick Griffith
c. Oswald Avery and Macly McCarty
d. Alfred Hershey and Martha Chase
e. Maurice Wilkins


ANSWER: a

Biology & Microbiology

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Animals that are warm blooded, have body hair, and produce milk for their young are grouped in the class

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Thomas Malthus proposed that ____.

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The microscope preferred for viewing living specimens is the ________ microscope

A) bright-field B) phase-contrast C) scanning electron D) scanning tunneling E) transmission electron

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