DNA replication is fully conservative in that you have the original molecule of DNA intact at the end and a brand-new synthesized piece of DNA. If false, make it a correct statement.
a. true
b. false
False, DNA replication is semiconservative
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Which molecule is incorrectly matched with the number of carbon atoms it possesses?
A) citrate-6 B) ?-ketoglutarate-5 C) acetyl CoA-2 D) malate-5 E) isocitrate-6
1 mm = ________ nm
A) 1,000,000 B) 1000 C) 10 D) 1/1000 E) 1/1,000,000
What is the LEAST useful indicator of an evolutionary relationship?
a. base sequence in DNA b. amino acid sequence in a protein c. similar ecological requirements d. similar embryonic development e. similar polypeptides
Bacteriochlorophyll differs from chlorophyll a and b in structure and function. Which of the following statements correctly contrasts these types of chlorophyll?
A) Bacteriochlorophyll has a heme ring, but chlorophyll a and b each have a porphyrin ring. B) Chlorophyll a and b each have a phytol side chain, which is missing from bacteriochlorophyll. C) Chlorophyll a has a methyl group attached to the porphyrin ring, but bacteriochlorophyll has a formyl group. D) Bacteriochlorophyll has a saturated carbon–carbon bond at one location in the porphyrin ring that is not saturated in chlorophyll a and b. E) Chlorophyll a and b porphyrin rings bind Mg2+, but the bacteriochlorophyll ring binds Fe3+.