Full 2L QBank
Biochemistry General d5f38713

If a completely radioactive double stranded DNA molecule undergoes two rounds of replication in a solution free of radioactive label. What is the radioactivity status of the resulting four double stranded DNA molecules

A
50% of the DNA molecules have no radioactivity
B
2 DNA molecules have radioactivity in both strands
C
I DNA molecule has radioactivity in both strands
D
All 4 DNA molecules have radioactivity
High-Yield Explanation
DNA replication is semi conservative. Thus 2 DNA molecules have one strand with radioactivity and other 2 DNA molecules have no radioactivity.
← Previous Question Next Question →

Related Biochemistry MCQs

Which of the following is true about effect of insulin and glucagon on gluconeogenesis?
General
Urease is a/an ?
General
True about coproporphyrin I and coproporphyrin III is -
General
Enzyme involved in oxidative phosphorylation ?
General
Fish odor syndrome is caused by deficiency of which enzyme?
General
Explore All Biochemistry Questions →

Practice 2,00,000+ NEET PG Questions Free

Timed mock tests, mistake queue analytics, audio lectures & zero attempt limits on i❤️Exams.

Start Free Mock Test Now