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Multiple Choice
Based on complementary base pairing, you would expect the percentage of __________ to be equal to the percentage of __________.
A
adenine; guanine
B
thymine; guanine
C
adenine; cytosine
D
thymine; cytosine
E
adenine; thymine
Verified step by step guidance
1
Understand the concept of complementary base pairing in DNA. DNA is composed of two strands that form a double helix, and the bases on one strand pair with the bases on the other strand.
Recall the base pairing rules: adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). This is due to the specific hydrogen bonding between these bases.
Based on these rules, the percentage of adenine in a DNA molecule will be equal to the percentage of thymine because they pair together.
Similarly, the percentage of guanine will be equal to the percentage of cytosine because they also pair together.
Therefore, when asked which percentages are equal based on complementary base pairing, the correct answer is adenine and thymine.