Question

Escherichia coli, in which both the strands of
DNA are labelled with 15N is transferred to
N medium and allowed to replicate for three
generations. Find out the number of hybrid
DNA molecules in the third generation.
[EAM CET 2015)
(A) 2
(B) 8
(C) 10
(D) 12​

Answer 1

Answer:

BIOLOGY

MEDIUM

Escherichia coli in which both the strands are labelled with

15

N is transferred to

14

N medium and allowed to replicate for two generations. Find the number of hybrid DNA molecules in the second generation

Answer 2

Answer:

(D) 12

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