Regulation of Gene Expression

Presentation

•

Biology, Science

•

9th - 10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-1

Standards-aligned

Roberto Gonzalez

Used 93+ times

FREE Resource

15 Slides • 21 Questions

Regulation of Gene Expression

Multiple Choice

What is a eukaryote?

An enzyme

a promoter protein

a cell with a nucleus

a gene setion

Multiple Choice

What is a prokaryote

an amino acid

a inhibitor protein

a cell with no nucleus

an enzyme

Multiple Choice

what does a promoter do?

it allows a gene to be transcribed

it creates a DNA segment

it is another word for ribosomes

it is another word for RNA

Multiple Choice

The "on/off" switch for an operon is called the

promoter

repressor

operator

gene

Multiple Choice

Gene regulation is the process that is used to:

help make sugars for cells in plants.

make glycosomes in cells.

turning genes on and off.

Not sure, need help.

Fill in the Blanks

Type answer...

Multiple Choice

What is a gene?

A segment of RNA that encodes for a protein

The portion of the chromosome that does not get transcribed

A segment of DNA that encodes for a protein

The collection of your chromosomes

Multiple Choice

Regulatory __________ attach to the regulatory ____________

proteins, body

sequences, proteins

proteins, sequence

codons, anticodons

Multiple Choice

In eukaryotes, proteins that help the RNA polymerase bind to the regulatory region for transcription are called ____________.

transcription factors

topoisomerase

regulatory genes

activators

Multiple Choice

In eukaryotes, proteins that help the RNA polymerase bind to the regulatory region for transcription are called ____________.

transcription factors

topoisomerase

regulatory genes

activators

Multiple Choice

Regulatory proteins (transcription factors) may

encourage transcription

prevent transcription

stop transcription once its started

either encourage or prevent transcription

Multiple Choice

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

Multiple Choice

What is the name of the stretch of DNA where RNA polymerase binds?

operator

promoter

enhancer

regulatory gene

Multiple Choice

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

regulator

repressor

activator

corepressor

Multiple Choice

What does a promoter do?

binds RNA polymerase for transcription

binds DNA polymerase for replication

binds the operator

binds the repressor

Multiple Choice

The "on/off" switch for an operon is called the

promoter

repressor

operator

gene

Multiple Choice

What does the lactose do to the Operon?

Blocks transcription of the lactase gene by cutting up the DNA

Binds to the repressor preventing it from attaching to the operator

The lactose binds promoter to prevent transcription

Allows for the transcription rate of lactase to slow down

Multiple Choice

What does the lactose do to the Operon?

Blocks transcription of the lactase gene by cutting up the DNA

Binds to the repressor preventing it from attaching to the operator

The lactose binds promoter to prevent transcription

Allows for the transcription rate of lactase to slow down

Multiple Choice

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

prokaryotes (bacteria)

eukaryotes (plant and animals)

animals only

viruses

Multiple Choice

The lac operon genes only become expressed if:

lactose binds to the repressor

glucose binds to the repressor

lactose binds to the operator

the repressor binds to the operator

Multiple Choice

The lac operon genes only become expressed if:

lactose binds to the repressor

glucose binds to the repressor

lactose binds to the operator

the repressor binds to the operator

Regulation of Gene Expression

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