BIOLOGY
STRUCTURE OF NUCLEIC ACIDS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
that A always matches with T and C always matches with G
|
|
|
that the two sides are held together by weak Hydrogen bonds
|
|
|
that they run in opposite directions
|
|
|
that they can only be replicated in one direction
|
Detailed explanation-1: -Correct Answer: C. Explanation: Antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).
Detailed explanation-2: -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-3: -The nitrogen bases can only pair in a certain way: A pairing with T and C pairing with G. This is called base pairing. Due to the base pairing, the DNA strands are complementary to each other, run in opposite directions, and are called antiparallel strands.