BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The DNA Double Helix. The DNA double helix looks like a twisted staircase, with the sugar and phosphate backbone surrounding complementary nitrogen bases.

Detailed explanation-2: -Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder-a shape known as a double helix.

Detailed explanation-3: -1: Antiparallel Strands: In a double stranded DNA molecule, the two strands run antiparallel to one another so one is upside down compared to the other. The phosphate backbone is located on the outside, and the bases are in the middle.

Detailed explanation-4: -Double-stranded DNA is an antiparallel molecule, meaning that it’s composed of two strands that run alongside each other but point in opposite directions. In a double-stranded DNA molecule, the 5’ end (phosphate-bearing end) of one strand aligns with the 3’ end (hydroxyl-bearing end) of its partner, and vice versa.

Detailed explanation-5: -One strand of DNA run from 5’ to 3’ end while other run from 3’ to 5’ end, thus antiparallel in nature. The DNA strands are complementary to each other because of the nitrogenous bases as A only binds to T and C only binds to G.