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Genetic Mutations II
Test Description: Second test of your genetic mutation knowledge.
Instructions: Answer all questions to get your test result.
1) A frameshift mutation
A
replaces one amino acid with another.
B
introduces a section of amino acids not normally found.
C
removes part of the protein.
D
joins two different proteins.
2) Which of the following is not an effect of a mutation?
A
adds a function to a protein
B
lowers the amount of a protein
C
prevents a protein from forming
D
changes the shape of a protein
3) A point mutation that changes a codon specifying an amino acid into a stop codon is called a
A
missense
B
frameshift
C
deletion
D
nonsense
4) Changing the codon AGC to AGA represents a ____ mutation.
A
missense
B
deletion
C
frameshift
D
nonsense
5) True of False: Most mutations have no effect on the organism.
A
False
B
True
6) A mutagen is
A
only not found to occur naturally
B
an organism with mutations in its genome
C
something that can cause a genetic mutation
D
a protein that repairs genetic mutations
7) A female that is planning to become pregnant is concerned about exposure to environmental mutagens. In order for these mutations to become heritable, they must affect her
A
somatic cells
B
egg cells
C
blood cells
D
body cells
8) Which of the following would indicate a base pairing mutation in DNA?
A
G paired with T
B
U paired with A
C
A paried with T
D
G paired with C
9) Mutations can occur during
A
DNA replication
B
all of the above
C
translation of a protein
D
transcription of mRNA
10) Which of these factors is associated with mutagenic effects
A
cigarette smoke
B
oxygen gas
C
carbon monoxide gas
D
water vapor
*select an answer for all questions
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