A DNA molecule in E. coli is heavy and labelled with `N^(15)`. Iit is allowed to replicate in a medium containing `N^(14)`. After one generation of replication, the two daughter molecules will

A bacteria containing 100% N^(15) nitrogen bases is allowed to replicate in medium containing N^(14) bases. After one round of duplication , the result would be

One E . Coli bacterium contains a hybrid DNA with one heavy N^(15) Strand and one light N^(14) Strand. It was allowed to replicate for 3 hours in a medium containing N^(14) What proportion of E. coli which will neither float nor sink in the test tube on ultra - centrifugation with CsCl ?

One E . Coli bacterium contains a hybrid DNA with one heavy N^(15) Strand and one light N^(14) Strand. It was allowed ti replicate for 3 hours in a medium containing N^(14) What proportion of E. coli which will neither float nor sink in the test tube on ultra - centrifugation with CsCl ?

Assuming that 50 heavy (i.e., containing N^(15) ) DNA molecules replicated twice in a medium containing N^(14) we expect

Escherichia coli fully labelled with .^(15)N is allowed to grow in .^(14)N medium. The two strands of DNA molecule of the first generation of bacteria have :

DNA having labelled thymidine is allowed to replicate in medium having nonradioactive thymidine. After three duplications, the DNA molecules having labelled thymidine shall be :

DNA having radiolabeled thymidine is allowed to replicate in medium having non-radioactive thymidine. After three generation radiolabeled thymidine shall be present in

E. coil with completely N^(15) DNA was allowed to replicate in N^(14) medium for two generations. Percentage of bacteria with heavy DNA will be