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The nitrogenous bases connecting the two strands of DNA are held together by hydrogen bonds.

1. The nitrogenous bases connecting the two strands of DNA are held together by hydrogen bonds.
2. The nitrogenous bases are connected through covalent bonds.
3. Both statements are accurate.
4. Neither statement is correct.

Correct answer: The nitrogenous bases connecting the two strands of DNA are held together by hydrogen bonds.

Solution

The base pairs in DNA are linked by hydrogen bonds, which provide stability while allowing the strands to separate during replication.

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