Bond in the DNA chain

The correct answer is All of these

Concept:

• DNA, or deoxyribonucleic acid, is the molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.
• The DNA chain is composed of nucleotides, each containing a phosphate group, a sugar molecule (deoxyribose), and a nitrogenous base.

Explanation:

• Phosphodiester Bond:
  • This type of bond forms the backbone of the DNA strand.
  • It connects the 5'-phosphate group of one nucleotide to the 3'-hydroxyl group of another nucleotide, creating a strong covalent linkage.
• Hydrogen Bond:
  • DNA is a double-stranded helical molecule. The two strands are complementary and anti-parallel.
  • The hydrogen bonds between the paired bases (A-T and G-C), repeated along the length of the DNA double helix, hold the two strands together in the double helix.
  • There are two hydrogen bonds between Adenine and Thymine base pair, whereas, there are three hydrogen bonds between Guanine and Cytosine base pair.

• Glycosidic Bond: This type of bond connects the nitrogenous base to the sugar molecule (deoxyribose) in a nucleotide.