NEET2007ZoologyMolecular Basis of InheritanceActual
The Okazaki fragments in DNA chain growth:
Options
- Apolymerize in the 3 ' to 5^ direction and replication fork
- Bprove semi-conservative nature of DNA replication
- Cpolymerize in the 5^ to 3 ' direction and explain 3' to 5' DNA replication
- Dresult in transcription.
Correct answer
C. polymerize in the 5^ to 3 ' direction and explain 3' to 5' DNA replication
Step-by-step solution
Okazaki fragments in DNA are linked up by the enzyme DNA ligase after replacing the RNA primers with deoxyribonucleotides after replacing the RNA primers with deoxyribonucleotides solution of the Okazaki fragments in DNA chain growth. Replication occurs always in 5'-3' direction. However, Okazaki fragments are synthesized on 3'-5' DNA template, join to form lagging strand which grows in 3^ -5^ direction.