The enzyme $DNA$ polymerase in $E.coli$ is a $DNA$ dependent polymerase and also has the ability to proof-read the $DNA$ strand being synthesised. Explain. Discuss the dual polymerase.

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$DNA$ polymerase helps in the replication of $DNA$ molecules. $DNA$ polymerase also helps in the proofreading, if any error/mutation occurred during replication.

Similar Questions

At the end of $DNA$ replication $DNA$ molecule having

Given below are two statements :

Statement $I:$

DNA polymerases catalyse polymerisation only in one direction, that is $5^{\prime} \rightarrow 3^{\prime}$

Statement $II:$

During replication of $DNA$, on one strand the replication is continuous while on other strand it is discontinuous.

In the light of the above statements, choose the correct answer from the options given below :

  • [NEET 2022]

Taylor conducted the experiments to prove semi­ conservative mode of chromosome replication on

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Semiconservative model of $DNA$ replication was proposed by which workers in eukaryotes

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]