Who performed classic experiments that supported the semiconservative model of DNA replication?
A) Watson and Crick
B) Meselson and Stahl
C) Hershey and Chase
D) Franklin and Wilkins
Answer: B
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Reactions that require CO2 take place in _____
A) the light reactions alone B) the Calvin cycle alone C) both the light reactions and the Calvin cycle D) neither the light reactions nor the Calvin cycle E) the chloroplast, but not as part of photosynthesis
The most inclusive level of organization listed
here is a(n) a. heart. b. carbon atom. c. DNA. d. a zebra. e. red blood cell.
Enzymes can catalyze a reaction only if
a. they encounter a molecule of ATP. b. their active site is sufficiently oxidized. c. they have both products in their active site at the same time. d. they encounter a substrate that fits their active site.
Cells can use (active/allosteric/substrate) sites to regulate enzyme activity and thereby control their metabolism
What will be an ideal response?