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TLS Online TPP Program

#Question id: 3970

In bacteria, an operon:

#Unit 3. Fundamental Processes

  1. is a region of DNA that is transcribed as a single mRNA encoding several proteins.

  2. encodes for miRNAs.

  3. contains a promoter unique for each individual gene in the operator.

  4. none of the above

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TLS Online TPP Program

#Question id: 3925

#Unit 3. Fundamental Processes

Constitutive genes
TLS Online TPP Program

#Question id: 3926

#Unit 3. Fundamental Processes

Positive regulation of a gene requires __.
TLS Online TPP Program

#Question id: 3927

#Unit 3. Fundamental Processes

An operon is __
TLS Online TPP Program

#Question id: 3928

#Unit 3. Fundamental Processes

An extremely large lactose source is encountered by an E. coli cell in the lumen of the small intestine of a human who just ate an entire carton of ice cream. Which of the following would most likely be a contributor to why the E. coli does not metabolize any of the lactose?
TLS Online TPP Program

#Question id: 3929

#Unit 3. Fundamental Processes

The product of the lacZ gene is __.
TLS Online TPP Program

#Question id: 3930

#Unit 3. Fundamental Processes

Which is not part of the lac operon?