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Molecular Basis of Inheritance question

2022 · Q80
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Molecular Basis of Inheritance question

2022 · Q80

NEETBiologyMolecular Basis of InheritanceMCQ+4 / −1

Ten E.coli cells with 15N - dsDNA are incubated in medium containing 14N nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from 15N?

  1. A
    20 cells
  2. B
    40 cells
  3. C
    60 cells
  4. D
    80 cells
View written solutionFree

Correct answer: C

From 10 parent E.coli cells

NEET 2022 Phase 1 Biology - Molecular Basis of Inheritance Question 43 English Explanation

Therefore, after 60 minutes, 60 E.coli cells will have DNA totally free from 15N.

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