NEET2022Botany-Messelson & Stahl Experiment
NEET 2022 Botany Messelson & Stahl Experiment MCQ Question
Type: MCQ-numerical-Hard-Class 12
Ten E.coli cells with ¹⁵N⁻dsDNA are incubated in medium containing ¹⁴N nucleotide. After 60 minutes how many E.coli cells with have DNA totally free from ¹⁵N?
A
60 cells
B
80 cells
C
20 cells
D
40 cells
Correct Answer
Option B
Detailed Explanation
After 60 minutes, E.coli cells would have gone through multiple generations, resulting in 80 cells with DNA free from ¹⁵N.
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