Q. Semi-conservative replication of DNA was first demonstrated in
A) Escherichia coli
B) Streptococcus pneumoniae
C) Salmonella typhimurium
D) Drosophila melanogaster.
Explanation
Mathew Meselson and Franklin Stahl (1958) conducted various experiments using isotopically labelled DNA of Escherichia coli to provide evidence in favour of semi-conservative mode of DNA replication.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.