Semiconservative replication of $DNA$ was first demonstrated in
Semiconservative replication of $DNA$ was first demonstrated in
- [AIPMT 2009]
- A
Escherichia coli
- B
Streptococcus pneumoniae
- C
Salmonella typhimurium
- D
Drosophila melanogaster.
Similar Questions
Ten E.coli cells with ${ }^{15} N$ - dsDNA are incubated in medium containing ${ }^{14} N$ nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from $15\,N$ ?
Ten E.coli cells with ${ }^{15} N$ - dsDNA are incubated in medium containing ${ }^{14} N$ nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from $15\,N$ ?
- [NEET 2022]
Replication of $DNA$ is in
Replication of $DNA$ is in
In which type of $DNA$ replication of the two newly formed molecules one is purely a new one and the other one is old
In which type of $DNA$ replication of the two newly formed molecules one is purely a new one and the other one is old
A $DNA$ molecule in which both strands have radioactive thymidine is allowed to duplicate in an environment containing non-radioactive thymidine. What will be the correct number of $DNA$ molecules that contain some radioactive thymidine after three duplications
A $DNA$ molecule in which both strands have radioactive thymidine is allowed to duplicate in an environment containing non-radioactive thymidine. What will be the correct number of $DNA$ molecules that contain some radioactive thymidine after three duplications
- [AIIMS 1980]
In Meselson and Stahl's experiments, heavy $DNA$ was distinguished from normal $DNA$ by centrifugation in
In Meselson and Stahl's experiments, heavy $DNA$ was distinguished from normal $DNA$ by centrifugation in