BIOMOLECULES AND ENZYMES

Detailed explanation-1: -In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.

Detailed explanation-2: -The strands of a DNA double helix are said to be “antiparallel” because the have the same chemical structure, but are opposite in direction.

Detailed explanation-3: -In nature, DNA and RNA exist in an antiparallel orientation, stabilized by Watson–Crick base pairs. However, in some cases, nucleic acid fragments with specific nucleotide sequences can adopt a parallel orientation involving non-canonical base pairing.

Detailed explanation-4: -Antiparallel means parallel but oppositely directed. The two DNA chains are antiparallel, i.e., they run parallel but in opposite directions. Each DNA molecule has two strands of nucleotides. Each strand has a sugar-phosphate backbone, but the orientation of the sugar molecule is opposite in the two strands.

Detailed explanation-5: -DNA strands are antiparallel because of the presence of hydrogen bond. Hydrogen bond binds the complementary bases (purine and pyrimidine)