The material responsible for transformation was shown to be DNA by

A. Watson and Crick.
B.
Avery, MacLeod, and McCarty.

C. Lederberg.
D. Stanley.


B

Biology & Microbiology

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Insects possess ____ , circulatory systems in which hemolymph completely "bathes" the organs and is not typically contained in distinct arteries or veins

Fill in the blank with the appropriate word.

Biology & Microbiology

From this figure and your knowledge of geological time scales, we can infer that:

1.Fossils found at point A are similar to those found at point B. 2.The rock formations of region B are much more recent than those of region C. 3.The rock layers and life forms found within are older as you move from layer D to layer A. 4.There are no generalizations to make. You have to carbon date everything regardless of what layer the fossil is found in.

Biology & Microbiology

A single protein strand folded into a stable,

functional domain represents a. primary structure. b. secondary structure. c. tertiary structure. d. quaternary structure. e. most macromolecules.

Biology & Microbiology

Which of the following can grow in a Petri plate on a laboratory table?

a. an anaerobic bacterium b. an aerobic bacterium c. viruses on an agar surface d. all of the above

Biology & Microbiology