Mutations and Chromosome Variation
1
What type of chromosome is A?
A
B
C
D
2
What type of chromosome is B?
A
B
C
D
3
metacentric
submetacentric
acrocentric
telocentric
metacentric
submetacentric
acrocentric
telocentric
What type of chromosome is C?
A
B
C
D
metacentric
submetacentric
acrocentric
telocentric
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Mutations and Chromosome Variation
4
What type of chromosome is D?
A
B
C
D
5
______________is a type of mutation where there is a change in single DNA base.
A
B
C
D
6
Transposons
Expanding Repeats
Pseudogenes
Duplication
Missing a single chromosome or having an extra is called_______________________.
A
B
C
D
9
Nonsense
Missense
Frameshift
Insertion
_____________________is not a coding gene but resembles a coding gene
A
B
C
D
8
Deletion
Insertion
Frameshift
Point
_____________________is a mutation that adds genetic material.
A
B
C
D
7
metacentric
submetacentric
acrocentric
telocentric
Polyploidy
Aneuploidy
Euploid
Disomy
Aneuploidy is caused by _________________, which is when one pair fails to separate at
anaphase 1 or 2
A
B
C
D
nondisjunction
deletion
translocation
desegregation
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Mutations and Chromosome Variation
10
__________________is an area before the protein encoding portions of the chromosome
that is between the telomeres and the centromere.
A
B
C
D
11
Are called "jumping genes".
A
B
C
D
12
Euchromatin
Heterochromatin
Alpha satellite
Kinetochore
The lighter area of the chromosome that carries protein-encoding genes
A
B
C
D
16
Kinetochores
Centromeres
Telomeres
Alpha Satellites
The part of the centromere that actually hooks to the spindle fibers.
A
B
C
D
15
Heterochromatin
Euchromatin
Telomeres
Kinetochore
Chromosome tips that shrink with each mitotic division.
A
B
C
D
14
Expanding repeats
Mismatch
Excision
Transposons
___________are the dark areas with repetitive base sequences.
A
B
C
D
13
Heterochromatin
Subtelomere
Kinetochore
Euchromatin
Heterochromatin
Euchromatin
Alpha satellite
Hot Spot
The largest constriction of the chromosome
A
B
C
D
Heterochromatin
Euchromatin
Subtelomere
Centromere
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Mutations and Chromosome Variation
17
__________________one or more extra sets of chromosomes
A
B
C
D
18
______________is having an extra chromosome.
A
B
C
D
19
nondisjunction
translocation
repair
missense
Mismatch and excision repair are 2 types of DNA repair mechanisms.
A
B
23
Transposons
Expanding Repeats
Excision
tandem duplication
A _________________is the transfer of material between nonhomologous chromosomes.
A
B
C
D
22
Trisomy
Monosomy
Nondisjunction
Euploid
___________is when a gene grows with each generation leading to a worsened condition
at a younger age.
A
B
C
D
21
Trisomy
Monosomy
Nondisjunction
Euploid
_______________is having a normal set of chromosomes.
A
B
C
D
20
Polyploidy
Aneuploidy
Trisomy
Monosomy
True
False
_________________is any change in the nucleotide sequence that composes a gene.
A
B
C
D
A euploid
A mutation
An aneuploidy
A polyploidy
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Mutations and Chromosome Variation
24
The wild type is the most unusual allele in the population.
A
B
25
The mutant is only the most unusual allele in the population that leads to the most unusual
allele.
A
B
26
Missense
Nonsense
Frameshift
Deletion
________________mutations add or delete a number of bases that is not a multiple of 3.
A
B
C
D
31
True
False
________________mutations change the amino acid that is coded for.
A
B
C
D
30
True
False
Site directed mutagenesis alters the synthesis of proteins one amino acid at a time.
A
B
29
True
False
A chemical that causes a mutation is called a mutagen. (radiation)
A
B
28
True
False
Areas that are more susceptible to mutations are called induced.
A
B
27
True
False
Missense
Nonsense
Frameshift
Deletion
________________mutations removes genetic material.
A
B
C
D
Missense
Nonsense
Frameshift
Deletion
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Mutations and Chromosome Variation
32
________________mutations change the amino acid in a stop codon.
A
B
C
D
33
Spontaneous mutations usually originate as an error in DNA replication.
A
B
34
True
False
Germline and Somatic mutations are both mutations that will affect future offspring.
A
B
35
Missense
Nonsense
Frameshift
Deletion
True
False
The fact that bacteria can reproduce about every 1/2 hour makes spontaneous mutation
important to us.
A
B
True
False
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Mutations and Chromosome Variation
Page 7
Answer Key : Mutations and Chromosome Variation
Question:
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Answer
A
B
C
D
D
D
C
B
A
B
D
A
C
D
B
D
A
A
D
B
B
A
B
B
B
B
A
A
A
C
D
B
A
B
A