Biology, 22.09.2019 12:30 angelthompson2018
If a dna double helix is gradually heated, which bonds in the molecule will break first (are the weakest)?
a. bonds between the nitrogenous bases
b. bonds between the bases and the sugars
c. bonds between the sugar and phosphate within a nucleotide
d. bonds between the sugar and phosphate of adjacent nucleotides
Answers: 2
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Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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If a dna double helix is gradually heated, which bonds in the molecule will break first (are the wea...
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