Which is the significance of the pairing of nitrogenous bases?
A) Complementary bases are present in equal amounts.
B) All nitrogenous bases are present in equal amounts.
C) Pairing the bases slows down DNA replication.
D) Pairing the bases stops DNA replication
Answers
Explanation:The Four BasesThe nucleobases in a DNA strand have preferred partners to form hydrogen bonds with. Cytosine pairs with guanine, and adenine pairs with thymine. These are the base pairing rules that allow DNA replication and protein synthesis to happen
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Answer:
Correct option - (A) Complimentary bases are present in equal amounts.
Explanation:
The DNA molecules are made up of nucleotide bases that pair with each other to form double strands. Adenine (A), Guanine (G), Cytosine (C), and Thymine (T) are the four nitrogenous bases that can be found within DNA. Among these four bases, A pairs with T, and C pairs with G. According to the base-pairing rule, adenine forms double hydrogen bonds with thymine, and cytosine and guanine bind with triple bonds.
Since adenine and thymine bind with each other, they are complementary in nature. The same is the case with cytosine and guanine. The most important fact about the pairing of nitrogenous bases is that the complementary bases are present in equal amounts. Adenine and thymine are present in equal amounts and cytosine ad guanine are present in equal amounts.