Answer: AUG.
- A UAA
- B UAG
- C AUG
- D UGA
Correct answer: C. AUG
Explanation: AUG, which codes for methionine, is the universal start codon for translation.
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.