Tuesday, 7 December 2021

cDNA LIBRARY

The copy of DNA formed on mRNA is called cDNA .
1,000- 30,000 types of various mRNA sequences can be obtained from a typical eukaryotic cell .
cDNA library and cDNA clone bank are the population of such viruses where each virus has at least one cDNA inserted plasmid is present .
In a complete viral population each member has from outside DNA sequence.
It is easy to make clone bank of those viruses which have DNA as genetic material 
Example - Influenza virus and Reovirus , etc .
Prokaryotic gene has no introns ,so cDNA is the continuous copy of mRNA while eukaryotic entrance brake the DNA molecules in small segments called exon.
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