What enzyme is needed in order to make a cdna library

Reference no: EM13146925

A) How is the gene for β-galactosidase used in the construction of a plasmid?

The gene is a promoter that is sensitive to the presence of the sugar, galactose.
It is an origin of replication.
It is a cloning site.
It is a marker for insertion of DNA.

B) A DNA library is

an orderly array of all the genes within an organism
a collection of vectors
the collection of plasmids found within a single E. coli
a collection of DNA fragments representing the entire genome of an organism

C) What enzyme is needed in order to make a cDNA library?

DNA helicase
RNA polymerase
Reverse transcriptase
Restriction exonuclease

Reference no: EM13146925

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