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Operons, genetic transfer and mutations

Authored by Michelle Bucks

Science

University

NGSS covered

Used 373+ times

Operons, genetic transfer and mutations
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A protein that binds to the operator and blocks the RNA polymerase

inducer protein

repressor protein

activator protein

structural protein

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Operons are found in the cells of which of the following types of organisms?

prokaryotes (bacteria)
eukaryotes (plant and animals)
animals only
viruses

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

what is an operon?

a part of a ribsome

a long piece of mRNA for several proteins

a unit of DNA containing linked genes that code for proteins needed to do a specific task

sequence of DNA needed for DNA replication

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the name of the stretch of DNA on an operon where RNA polymerase binds to initiate transcription?

operator

promoter

enhancer

origin

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The location of an operon that functions as an "on/off" switch and is where a repressor would bind

promoter

repressor

operator

structural gene

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following describes an operon that is inactive and becomes activated by a molecule binding to the repressor?

inducible operon

repressible operon

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following describes an operon that is active and becomes inactivated by a molecule binding to the repressor?

inducible operon

repressible operon

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