Complete the statement. In a single-celled bacterium, gene regulation is essential for ... synthesizing tryptophan only...
Complete the statement. In a single-celled bacterium, gene regulation is essential for ...
synthesizing tryptophan only when the concentration of tryptophan gets too low
only producing a given molecule when it is needed
all of these are correct
being efficient in the use of resources
responding adaptively to changing environmental conditions
Homework Answers
In a single-celled bacterium, gene regulation is essential for ...responding adaptively to changing environmental condition
synthesizing tryptophan only when the concentration of tryptophan gets too low only producing a given molecule when it is needed.
Explanation-
Gene regulation occur to regulate expression of gene according to the requirements. Whenever ever a protein is required, there is expression of particular gene.
When a protein is not required- gene is switched off
Similar type of regulation occur in prokaryotes, tryptophan operon. When tryptophan levels are low- this operon express and lead to synthesis of tryptophan synthesizing enzyme
When tryptophan levels are high - operon is repressed- decreased expression of gene involved in tryptophan biosynthesis
Thus expression of this operon changes according to their environment.
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