Protein synthesis occurs in two stages. During transcription,
is generated from a template strand of
This takes place in the
of the cell. The transcribed molecule is then translated into
a
by

The answers to the blank spaces are as follows:

mRNA . WHAT IS GENE EXPRESSION:

Gene expression is the process whereby the gene is used to synthesize proteins. It is made up of two processes as follows:

Transcription Translation. Transcription is the process whereby mRNA molecule is synthesized from a DNA template while translation is the process whereby mRNA is used to synthesize proteins. Transcription occurs in the nucleus of the cell while translation occurs in the ribosome. Translation occurs with the aid of a molecule called transfer RNA (tRNA).

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mRNA, DNA, Nucleus, protein, ribosome

Explanation:

mRNA is a messenger RNA which is produced during transcription by using a template strand of DNA in the nucleus. The mRNA is then translated into protein by ribosome of the cell. This whole concept is part of the Central Dogma of Life.

The answer is;  C

An allosteric protein does not bind to the active site of an enzyme. Only the subtrate binds the active site. However, some enzymes have an allosteric site where the allosteric protein binds and influences the conformation of the enzyme. This change in conformation on binding may facilitate or inhibit the binding of subtrate to the enzyme active site. Therefore, there are two type of allosters; inhibitors and activators.