AP BIOLOGY

Detailed explanation-1: -Explanation: Antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole). DNA (Deoxyribonucleic Acid) is composed of two polynucleotide strands (the polymers of nucleotides), which forms what looks like a ladder.

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 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-4: -antiparallel (plural antiparallels) (geometry) A line that forms equal angles with two other lines, but in opposite directions.

Detailed explanation-5: -Due to the base pairing, the DNA strands are complementary to each other, run in opposite directions, and are called antiparallel strands.