Which of the following should be chosen for best yield if one were to produce a recmobinant protein in large amounts ?

Options

A. Laboratory flask of largest capacity
B. A stirred-tank bioreactor without in-lets and out-lets
C. A continous culture system
D. Any of the above.

Explanation

If any protein encoding gene is expressed in a heterologous host. It is called a recombinant protein. The cells harbouring cloned genes of interest may be grown on a small scale in the laboratory.
The cultures may be used for extracting the desired prtoein and then puritying it by using different separation techniques.
The cells can also be multiplied in a continous culture system where in the used medium is drained out from one side while fresh medium is added from the other to medium the cells in their physiologically most active log/exponenital phase. This type of culfuring method produces a larger biomass leading to higher yields of desired protein.