MCQ
Semiconservative replication of DNA was first demonstrated in:
- ASalmonella typhimurium
- BDrosophila melanogaster
- CEscherichia coli
- DStreptococcus pneumoniae
✓
Answer
- Escherichia coli
Explanation:
DNA replication is semiconservative in nature.
During the replication process, one strand is a newly synthesized strand while the parental strand remains intact, this property of DNA replication is known as the semiconservative nature of DNA replication.
Methew Messelson & Franklin Stahl (1958) experimentally proved the semiconservative replication of DNA.
They did an experiment on Escherichiacoli.
Hence, the semi-conservative nature of DNA replication was first demonstrated on Escherichiacoli.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Where is maximum biodiversity found?
Which part of the body is most damaged by chronic use of alcohol?
Capacitation is a natural process occurs in :
It attacks on insects and arthropods
Occasionally, a single gene may express more than one effect. The phenomenon is called:
Biosphere is.
How many species of Amphibians are present in the Amazonian rain forest in South America?
A recombinant DNA molecule can be produced in the absence of the following.
$A$ : In secondary productivity, no new organic matter is formed.
→$R$ : It is only utilisation of part of food manufactured by primary producers in building of consumer biomass.
Extinction of more than $200$ species of cichlid fish in lake Victoria was due to introduction of
→