Answer: Lalji Singh.
- A Har Gobind Khorana
- B Lalji Singh
- C Marshall Nirenberg
- D G.N. Ramachandran
Correct answer: B. Lalji Singh
Explanation: Dr. Lalji Singh made major contributions to developing DNA fingerprinting technology in India.
Helicase unwinds the double helix at the replication fork; one new strand (leading) is synthesised continuously toward the fork, while the other (lagging) must be made in short, separate Okazaki fragments because DNA polymerase only adds nucleotides 5'→3'.
Concept context
DNA structure, replication, transcription, translation, the genetic code, and gene regulation (lac operon). The single most important chapter for NEET molecular biology.