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27 October, 01:54

Which statement about operons is false?

A) The structural genes in the operon are either all on or all off at a given time.

B) They consist of a cluster of genes with a single promoter.

C) Their DNA is transcribed into a single molecule of mRNA.

D) They are the units of transcriptional regulation in prokaryotes.

E) A repressible operon is turned off unless needed.

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Answers (1)
  1. 27 October, 05:10
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    Answer: All the statement are correct.

    Explanation:

    In prokaryotes, an operon are unit of transcription regulation, operon are functioning unit of DNA of which consists of cluster of related genes with a single promoter and an operator.

    The structural genes in the operon are either all ON or OFF at the same time, because they are controlled by a single promoter and an operator. Represible or inducible operon are all turned of off unless needed.

    The DNA of an operon are generally transcribed into a single mRNA molecule which is polycistronic that codes for more than one protein
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