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Which enzyme is critical to making a cDNA library but is not used in making a genomic library? O Reverse transcriptase O Rest
The number of protein coding genes in the human genome was almost exactly the number that was predicted prior to the human ge
Multiple bacterial genes under the control of a single regulatory region is an example of O an operon O an inducible system O
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Answer #1

1. Reverse transcriptase.

Reverse transcriptase is an enzyme mostly found in the viral system, have the capability to synthesise DNA from RNA template. After the elucidation of it's function, we have exploited the function of this enzyme in molecular biology research purposes. We can isolate the RNA from the organism and use the enzyme reverse transcriptase which will make a new DNA copy from that isolated RNA. It is very useful for the study of eukaryotic gene function and to make the library. In case of a mature mRNA, it doesn't contain any intron region, so if you can make a copy of the mRNA into cDNA, it might help in study the functionality of that gene.

3. An Operon.

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