Question

Escherichia coli fully labelled with ¹⁵N is
allowed to grow in ¹⁴N medium. The two strands
of DNA molecule of the first generation bacteria
have
(a) different density and do not resemble parent
DNA
(b) different density but resemble parent DNA
(c) same density and resemble parent DNA
(d) same density but do not resemble parent
DNA

Answer 1

Option.b

Different Density but resemble parent DNA

Answer 2

Answer:

Escherichia coli fully labelled with ¹⁵N is

allowed to grow in ¹⁴N medium. The two strands

of DNA molecule of the first generation bacteria

have

(a) different density and do not resemble parent DNA

(b) different density but resemble parent DNA ✔✔

(c) same density and resemble parent DNA

(d) same density but do not resemble parent DNA