Genetically engineered human insulin is called

Through which knowledge are microbes used for human welfare?

In the processing of proinsulin into mature insulin,which of the following steps occurs?

An example of gene therapy is .......

The $C$-peptide is .......

Many proteins are secreted in their inactive form. This is also true of many toxic proteins produced by microorganisms. Explain how this mechanism is useful for the organism producing the toxin?