Who proposed that in any DNA molecule, A =T and G = C?

A. Franklin
B. Chargaff
C. Watson and Crick
D. Hershey and Chase


Answer: B

Biology & Microbiology

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Most of the apples sold in grocery stores are products of trees that are propagated by ________

a. grafting b. seed c. tissue culture d. suckers

Biology & Microbiology

Explain how the discovery of cytoskeletal elements in prokaryotes contributed to the current understanding of the endosymbiont theory

What will be an ideal response?

Biology & Microbiology

Oil hydrogenation can produce a product, such as vegetable shortening or margarine, that is spreadable at room temperature because of an unusual bond that does not occur naturally. What is the name of this category of lipid?

A) Saturated fat B) Healthy fat C) Trans fat D) Cholesterol

Biology & Microbiology

Filtration methods, followed by growth of the bacteria trapped on the filters in growth media, are used to count bacteria present in very low concentrations, such as in lakes and streams

Indicate whether the statement is true or false

Biology & Microbiology