If a foreign gene is cloned into an expression host, it is important that the host itself a) not produce the protein being studied. b) produce the protein in larger amounts than the vector. c) repress the genetic expression being studied. d) produce signal proteins to tag the host protein.

Answer is A. not produce the protein being studied.

Explanation:

The process of generating, creating or replicating a copy of a cell or an organism, which is genetically identical , is called cloning.

There are three types of cloning, these are

1. gene cloning... which is the process of replicating copies of genes.

2. reproductive cloning is the process of generating copies of whole organism.

3. therapeutic cloning... this process is always used when the aim is at creating or generating tissues in replacing diseased or injured tissue by producing embryonic stem cells for experiment.

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