Multiple Choice
Which of the following are purines?
A) cytosine and guanine
B) guanine and adenine
C) adenine and thymine
D) thymine and uracil
E) uracil and cytosine
Correct Answer:

Verified
Correct Answer:
Verified
Q80: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7910/.jpg" alt=" Figure 3.7 -Which
Q81: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7910/.jpg" alt=" Figure 3.2 What
Q82: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7910/.jpg" alt=" Figure 3.5 -Which
Q83: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7910/.jpg" alt=" Figure 3.5 -Which
Q84: The molecular formula for glucose is C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>.What
Q86: How many electron pairs are shared between
Q87: The sequence 5'-GAACGA'3' may be found in
Q88: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7910/.jpg" alt=" Figure 3.4 -Which
Q89: Why are the vertebrate sex hormones estrogen
Q90: If <sup>14</sup>C-labeled uracil is added to the