Define the term proteome of a cell.
To construct a recombinant plasmid containing a human growth hormone gene, a researcher uses two key enzymes. Describe the specific roles of restriction endonuclease and DNA ligase in inserting this gene into the plasmid.
Crop scientists have developed transgenic potato plants that produce a single-stranded antisense RNA molecule complementary to the mRNA of the polyphenol oxidase gene, which causes enzymatic browning. Suggest how this single-stranded antisense RNA prevents the translation of the polyphenol oxidase enzyme.