Label the diagram:
1. Deoxyribose
2. nitrogenous base
3. nucleotide
4. base pair
5. hydrogen bond
6. phosphate group.
A double-stranded form of DNA is known as a double helix.
- Each strand of DNA is made up of nucleotides. Each nucleotide is composed of deoxyribose sugar, a phosphate group, and a nitrogenous base.
- The nitrogenous bases that are present in the DNA molecule: Adenine, Guanine, Cytosine, and Thymine.
- Each strand of DNA is joined together by hydrogen bonds between nitrogenous bases.
- Adenine pairs with thymine and cytosine pairs with guanine by means of hydrogen bonds.
Thus, the number with the space in the diagram is as follows:
1. Deoxyribose
2. nitrogenous base
3. nucleotide
4. base pair
5. hydrogen bond
6. phosphate group.
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