LAC OPERON

LAC OPERON

University

10 Qs

quiz-placeholder

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LAC OPERON

LAC OPERON

Assessment

Quiz

Biology

University

Practice Problem

Medium

Created by

NURHIDAH BM

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

regulator
repressor
activator
corepressor

2.

MULTIPLE CHOICE QUESTION

30 sec • 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

30 sec • 1 pt

In the lac operon the inducer is

allolactose

glucose

galactose

all of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The sequence where lac repressor binds on operon is called_______

promoter

lac z

operator

lac I

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following is not a structural gene?

lac z

lac y

lac a

lac I

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

what is an operon?

a part of a ribsome
a part of a Rna
a unit made up of linked genes that code for proteins needed to do a specific task
needed for dna replication

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the role of operons in prokaryote gene expression?

It makes the genes prokaryotes be turned on
It accounts for the regulation of gene activity in response to the needs of the cells
To make DNA for the gene
To make the gene turn of and off

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