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

If the sequence of the DNA template strand is as follows: 3' TACGTACG 5' What will be the sequence of the transcribed mRNA?

Options

  1. A3' AUGCAUGC 5'
  2. B5' AUGCAUGC 3'
  3. C5' ATGCATGC 3'
  4. D5' UACGUACG 3'

Correct answer

B. 5' AUGCAUGC 3'

Step-by-step solution

During transcription, the mRNA is synthesised in the 5' to 3' direction by RNA polymerase, using the 3' to 5' DNA strand as a template. The mRNA sequence is complementary to the template strand. According to base pairing rules for RNA synthesis, Adenine (A) pairs with Uracil (U), Thymine (T) pairs with Adenine (A), Cytosine (C) pairs with Guanine (G), and Guanine (G) pairs with Cytosine (C). Given template strand: 3' TACGTACG 5' Complementary mRNA: 5' AUGCAUGC 3' Option 1 is incorrect because it has the wrong polar

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