WorksheetsGr12 Chapter 9 Mutations
Total questions: 25
Worksheet time: 2hrs 5mins
Name
Class
Date
1.
What are the building blocks of proteins called?
a)
DNA
b)
RNA
c)
Ribosomes
d)
Amino Acids
2.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
3.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion
4.
What is a Gene?
a)
A segment of RNA that encodes for a protein
b)
A chromosome
c)
A segment of DNA that encodes for a protein
d)
Your genome
5.
Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA
a)
no mutation
b)
substitution
c)
insertion
d)
deletion
6.
Are all mutations bad?
a)
Yes
b)
No
7.
What pairs with Adenine (A)?
a)
Guanine (G)
b)
Cytosine (C)
c)
Adenine (A)
d)
Thymine (T)
8.
What pairs with Thymine (T)?
a)
Adenine (A)
b)
Thymine (T)
c)
Guanine (G)
d)
Cytosine (C)
9.
What pairs with Guanine (G)?
a)
Adenine (A)
b)
Thymine (T)
c)
Cytosine (C)
d)
Guanine (G)
10.
What pairs with Cytosine (C)?
a)
Guanine (G)
b)
Cytosine (C)
c)
Adenine (A)
d)
Thymine
11.
What are the three types of mutation?
a)
Insertion, Deletion, Subsitution
b)
Deletion, Newstion, Subsitution
c)
Newstion, Deletion, Insertion
d)
Insertion, Newstion, Substitution
12.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
13.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
14.
What do hurtful mutations do?
a)
Decrease chances of survival
b)
Increases changes of survival
c)
Decreases likelihood of developing cancer
d)
Increases likelihood of developing cancer
15.
Which of the following is an example of a hurtful mutation?
a)
Developing cancer
b)
Makes the organism faster
c)
Makes the organism a predator
d)
Develops sharp claws
16.
What do helpful mutations do?
a)
Increases chances of survival
b)
Decreases changes of survival
c)
Increases chances of developing cancer
d)
Decreases skills
17.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
18.
Why are insertion and deletion (frameshift) mutations so harmful?
a)
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
b)
They insert things that an organism doesn't need.
c)
They often delete things that organisms need.
d)
Insertion and deletions are not any more harmful than substitution mutations.
19.
Which RNA bases would pair with TACGAA in transcription?
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
20.
a change in one DNA triplet that may result in a new triplet that codes for a stop codon instead of an amino acid is known as
a)
missense
b)
nonsense
c)
frameshift
d)
silent
21.
A type of substitution in which no amino acids change is called
a)
Missense
b)
Nonsense
c)
Silent
d)
Deletion
22.
Mutations are__________
a)
Harmful
b)
Harmful or beneficial
c)
Neutral
d)
Harmful, neutral, or beneficial
23.
Which of the following can increase the rate of mutation?
a)
UV Radiation
b)
Viruses
c)
toxic chemicals
d)
All of the above
24.
A frameshift mutation would result from...
a)
a base deletion only
b)
a base substitution only
c)
either an insertion or deletion of a base
d)
a base insertion only
25.
Normal-
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
a)
deletion frameshift
b)
insertion frameshift
c)
substitution
d)
nonsense
100 %
