Answer:
<u>G. Nitrogenous base</u>
Explanation:
Double-stranded DNA (Deoxyribonuclease) molecules store genetic information. Their 5-carbon deoxyribose sugar, phosphate and one of four nitrogenous bases from which nucleotides derive their name:
- Adenine (A)
- Guanine (G)
- Cytosine (C)
- Thymine (T).
The nucleotides on a single strand are bonded together via covalent bonding. Base pairs are formed between nucleotides on opposite strands, due to hydrogen bonding between bases. For instance, <u>Adenine forms double bonds with thymine, while cytosine forms triple bonds with guanine.</u>
