Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETZoologyMolecular Basis of Inheritance

Discontinuous synthesis of DNA occurs in one strand, because:

Options

  1. ADNA molecule being synthesised is very long
  2. BDNA dependent DNA polymerase catalyses polymerisation only in one direction (5’ → 3’)
  3. Cit is a more efficient process
  4. DDNA ligase joins the short stretches of DNA

Correct answer

B. DNA dependent DNA polymerase catalyses polymerisation only in one direction (5’ → 3’)

Step-by-step solution

DNA dependent DNA polymerase catalyses polymerisation only in one direction (5’ → 3’) thus the other stand in opposite direction undergoes discontinuous synthesis.

Practice Molecular Basis of Inheritance on Quantrex Academy →

More from Molecular Basis of Inheritance

Which of the following statements about lac-operon is correct ? 2026Which of the following enzymes synthesizes precursor mRNA ? 2026Which of the following statements are correct with reference to a transcription unit ? A. A transcription unit in DNA is defined primarily by three regions : promoter, structural g 2026Which of the following statements are correct with reference to packaging of DNA helix ? A. Histones are organized to form a unit of eight molecules called histone octamer. B. Hist 2026Arrange the following steps of DNA fingerprinting in a correct sequence. A. Isolation of DNA and its digestion by restriction endonucleases. B. Hybridisation using a labelled VNTR 2026In the lac operon, the z gene codes for : 2026Given below are two statements : Statement I : In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic m 2025Match List I with List II: array |l|l|l|l| & List - I & & List - II A . & Alfred Hershey and Martha Chase & (i) & Streptococcus pneumoniae B. & Euchromatin & (ii) & Densely packed 2025 Full Molecular Basis of Inheritance list All NEET PYQs