Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?

Which of the following techniques serves the purpose of early diagnosis of $AIDS$,cancer,etc?
$I$. Polymerase chain reaction
$II$. Recombinant $DNA$ technology
$III$. Enzyme-linked immunosorbent assay
Choose the correct option.

Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?

What is produced from yeast?

Genetically engineered bacteria are being used in commercial production of

In which bacteria was the gene for insulin cloned?