Which process is used for amplification or multiplication of $DNA$ for finger printing?
Medium
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a Polymerase chain reaction $(PCR)$ is a process used for the amplification (copy small segments) of $DNA$. It is a technique for enzymatically replicating $DNA$ without using living organisms, such as $\mathrm{E}$. coli or yeast. It is commonly used in the nedical and biological research labs for a variety of tasks, like detection of ereditary diseases, the identification of genetic fingerprints, diagnosis of infectious diseases, cloning of genes, paternity testing etc. segments and number of repetitive units.
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E. coli has only $4.6 \times 10^{6}$ base pairs and completes the process of replication within 18 minutes; then the average rate of polymerisation is approximately
$A$ : Peptidyl transfer site is contributed by larger sub-unit of ribosome.
$R$ : The enzyme peptidyl transferase is contributed by both $23S$ and $16S$ ribosomal sub-units.