AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which nucleotide is complementary to adenine in DNA?
A
adenine
B
thymine
C
cytosine
D
guanine
Explanation: 

Detailed explanation-1: -These chemical bonds act like rungs in a ladder and help hold the two strands of DNA together. There are four nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).

Detailed explanation-2: -In DNA, adenine always pairs with thymine (A-T), and guanine always pairs with cytosine (G-C). RNA is the same, except that adenine always pairs with uracil (A-U).

Detailed explanation-3: -noun Genetics. either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA or double-stranded RNA: guanine is the complementary base of cytosine, and adenine is the complementary base of thymine in DNA and of uracil in RNA.

Detailed explanation-4: -Final answer: In DNA the complementary bases are adenine and thymine, guanine, and cytosine.

Detailed explanation-5: -complementary nucleotides | NCpedia. Definition: adenine and thymine, guanine and cytosine. In DNA, adenine correctly pairs with thymine and guanine correctly pairs with cytosine.

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