NEW
Font size
S
M
L
XL
WorksheetsGene Regulation
Total questions: 20
Worksheet time: 21mins
Name
Class
Date
1.
what does a promoter do?
a)
it allows a gene to be transcribed
b)
it creates a DNA segment
c)
it is another word for ribosomes
d)
it is another word for RNA
2.
A protein that binds to the operator and blocks the RNA polymerase
a)
regulator
b)
repressor
c)
activator
d)
corepressor
3.
In eukaryotes, proteins that help the RNA polymerase bind to the regulatory region for transcription are called ____________.
a)
transcription factors
b)
topoisomerase
c)
regulatory genes
d)
activators
4.
What is the name given to part of a DNA molecule that codes for a protein?
a)
Glucose
b)
Chromosome
c)
Gene
d)
Phosphate
5.
Which of the following statements regarding mRNA is correct?
a)
Exons are included in the protein sequence, while introns are left out
b)
Introns are included in the protein sequence, while exons are left out
c)
Exons and Introns can both be included or left out depending on the protein
d)
Exons and Introns are both part of the mRNA sequence, but only exons are part of the rRNA and tRNA
6.
What is the role of operons in prokaryote gene expression?
a)
It makes the genes prokaryotes be turned on
b)
It accounts for the regulation of gene activity in response to the needs of the cells
c)
To make DNA for the gene
d)
To make the gene turn of and off
7.
What is the name of the stretch of DNA where RNA polymerase binds?
a)
operator
b)
promoter
c)
enhancer
d)
regulatory gene
8.
The "on/off" switch for an operon is called the
a)
promoter
b)
enhancer
c)
operator
d)
gene
9.
A key advantage of grouping genes with related functions is that a single "on-off" switch can control the whole cluster.
a)
True
b)
False
10.
An operon consists of all the the following EXCEPT
a)
operator
b)
promoter
c)
regulatory gene
d)
genes of the operon
11.
what is an operon?
a)
a part of a ribsome
b)
a part of a Rna
c)
a unit made up of linked genes that code for proteins needed to do a specific task
d)
needed for dna replication
12.
In eukaryotes, proteins that help the RNA polymerase bind to the promoter for transcription
a)
transcription factors
b)
topoisomerase
c)
regulatory genes
d)
activators
13.
The process of transcription produces a complementary strand of RNA on a DNA template
a)
False
b)
True
14.
Any substance that is known to cause cancer is called a
a)
carcinogen
b)
nicolyte
c)
pathogen
d)
retrovirus
15.
An abnormal mass/group of cancer cells is called a
a)
tumor
b)
cyst
c)
lesion
d)
polyp
16.
What is cancer?
a)
The heart does not receive enough blood.
b)
Sudden disruption of blood flow to part of the brain.
c)
Blood filled weak spot.
d)
Uncontrolled growth and spread of abnormal cells.
17.
Using drugs or medicines to destroy cancer cells.
a)
chemotherapy
b)
radiation therapy
c)
cancer surgery
d)
mitotic spindling
18.
What is a mutation?
a)
A mistake in DNA which can lead to cancer
b)
A complete copy of DNA
c)
A change in DNA which doesn't cause an issue
d)
A mistake in your body that is caught and removed
19.
These are examples of:
- chemicals in cigarette smoke
- radiation
- nitrates in processed foods
- artificial sweeter
- Heavy metals such as mercury and lead
a)
Carcinogens
b)
Predispositions
c)
Mutations
d)
Tumors
20.
These are examples of:
- Surgery
- Chemotherapy
- Radiation
a)
Treatments for Cancer
b)
Mutations
c)
Examples of Asexual Reproduction
d)
Types of Tumors
Reset
