Molecular Basis Of Inheritance Question 155
Question: Operon is a:
Options:
A) Sequence of three nitrogen bases determining a single amino acid.
B) Set of closely placed genes regulating a metabolic pathway in prokaryotes.
C) Segment of DNA specifying a polypeptide.
D) Gene responsible for switching on and switching off other genes.
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Answer:
Correct Answer: B
Solution:
[b] Operons are segments of genetic material (DNA) which functions as regulated unit or units that can be switched on or switched off.
It is a sequence of closely placed genes regulating a metabolic pathway in prokaryotes.
BETA
