Both a wire maker and a molecular biologist who had developed a recombinant vaccine claim to be biotechnologists. Who in your opnion is correct?

Explanation

In my opnion both of them are correct. As biotechnology is a very wide area which deals with techniques of using a natural organism for its parts as well as genetically modified organism to produce and processes useful for markind.
A wine maker employs a strain of yeast to produce wine by fermentation (a nature phenomenon). while the molecular biologist has clonied gene for the antigen (that is used as vaccine) in an organism which allows the production of the antigen in large amount.