NEET2006ZoologyMolecular Basis of InheritanceActual
Antiparallel strands of a DNA molecule means that:
Options
- Aone strand turns clockwise
- Bone strand turns anti-clockwise
- Cthe phosphate groups of two DNA strands, at their ends, share the same position
- Dthe phosphate groups at the start of two DNA strands are in opposite position (pole)
Correct answer
D. the phosphate groups at the start of two DNA strands are in opposite position (pole)
Step-by-step solution
The antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in the opposite directions. One polynucleotide chain grows in the 5^ 3^ -direction and the other chain grows in the 3^ 5^ direction.