Question

What is a heterologous host?

Answer 1

Heterologous host is the host which expresses the protein in the cell lines where they are not supposed to be produced. For example E.coli, yeast, mammalian cells

Answer 2

Heterologous expression refers to the expression of a gene or part of a gene in a host organism, which does not naturally have this gene or gene fragment. Insertion of the gene in the heterologous host is performed by recombinant DNA technology.