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.

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

the answer is b)3/8x+1

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.