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.
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.