Extract chromosome with gene for growth hormone from nucleus of a cow cell, Cut the gene for growth hormone from the chromosome using a RESTRICTION ENZYME, Cut open a bacterial plasmid (vector) using the SAME RESTRICTION ENZYME, Join the cow DNA and plasmid USING DNA LIGASE ENZYME, The vector (RECOMBINANT PLASMID) is inserted into a bacterial cell e.g. E.Coli, The bacteria is grown in a fermenter, producing cow growth hormone which is collected and purified for use in cows to increase milk yield..

Genetic engineering - producing cow growth hormone (iGCSE Edexcel focus terminology)

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