2006-12-19 11:23:34 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The covalent bonds in DNA are present in the phosphate-deoxyribose backbone and in the base pairs. Hydrogen bonding takes place between the complimentary base pairs (AT and GC)
2006-12-19 11:38:07 · answer #1 · answered by olaf_mcmannis 2 · 0⤊ 0⤋
Single stranded DNA is entirely formed of covalent bonds.DNA is composed of nucleotides. Each nucleotide is composed of deoxyribose sugar, a nitrogenous base, and a phosphate. All the three components that constitute a nucleotide are covalently bonded.To deoxyribose sugar nitrogenous base is attached to carbon no.1 and the phosphate is attached to either 3 rd carbon or 5th carbon of deoxyribose sugar.
When a double strand is formed, the complementary bases face each other inwardly and are hydrogen bonded. Between the base pairs are stacking forces, which are non-covalent.
2006-12-19 12:09:59 · answer #2 · answered by Ishan26 7 · 1⤊ 0⤋
DNA consists of 2 complemetary strands. The covalent bonds (aka hydrogen bonds) are between each of the strands.
2006-12-19 11:38:19 · answer #3 · answered by yennay 3 · 0⤊ 0⤋
i'm not rather advantageous yet right here it is going because of the fact a chromosome is nearly a ladder and the two edge of the ladder is a helix keeping DNA hence getting it the call of a double helix
2016-12-30 16:20:31 · answer #4 · answered by ? 3 · 0⤊ 0⤋