The following correctly describes the structure of DNA -
- strands of phosphate -sugar backbone, with complementary nitrogenous base pairs bound into a double helix
DNA is the hereditary unit of the body and is present in the nucleus of the eukaryotic cells and cytoplasm in prokaryotic cells. It contains all the information for the development and growth of the organism
- Each nucleotide in DNA is composed of nitrogen base pairs that are complementary to each other either guanine (G), adenine (A), thymine (T), or cytosine (C) a
- It has monosaccharide sugar also called deoxyribose and a phosphate group.
- The nucleotides are joined to one another in a chain by covalent bonds between the sugar of one nucleotide and the phosphate of the next, resulting in an alternating sugar-phosphate backbone.
- Bases bound with one another, Adenine with Thymine and Cytosine with Guanine by hydrogen bonds to make double-stranded or double helix DNA.
Thus,
The following correctly describes the structure of DNA -
- strands of phosphate -sugar backbone, with complementary nitrogenous base pairs bound into a double helix
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