Avery,MacLeod,and McCarty (1944)demonstrated That DNA Was the Molecule of Heredity

question 19

Multiple Choice

Avery,MacLeod,and McCarty (1944) demonstrated that DNA was the molecule of heredity by treating heat-killed Streptococcus pneumoniae S (smooth) strain with DNase,thereby preventing transfer of the "transforming substance" from the killed S strain to the live R (rough) strain when the two were mixed together and injected into mice.Another way that one could demonstrate transformation in bacteria would be to extract DNA from

• A)an R strain and mix with cells of an S strain.
• B)both S and R strains and mix to allow recombination to take place.
• C)an ampicillin-sensitive strain and mix with cells of an ampicillin-resistant strain.
• D)an S strain and mix with cells of an R strain.
• E)none of the above

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Definitions:

Bullets

Short, pointed statements used in writing and presentations to highlight key information.

Grammatically Parallel

The use of similar grammatical structures in related words, phrases, or clauses to create a sense of rhythm and balance in writing.

Self-contained

Refers to something that is independent, has everything it needs within itself, and does not require external support.

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