WorksheetsMutations and Evolution
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
What type of gene mutation results from the insertion or deletion of nucleotides and alters the entire amino acid sequence from that point forward?
a)
Frameshift
b)
Missense
c)
Nonsense
d)
Silent
2.
Which term refers to an organism, usually a plant, having an extra copy of a complete set of chromosomes?
a)
Monosomy
b)
Polyploidy
c)
Trisomy
d)
Zygoploidy
3.
Which of the following events causes a change in chromosome number?
a)
Duplication
b)
Mutogenesis
c)
Nondisjuction
d)
Parthenogenesis
4.
What type of mutation results in a change in the nucleotide sequence of DNA or RNA?
a)
Chromosomal mutation
b)
Gene mutation
c)
Nondisjunction mutation
5.
Replacing the amino acid serine with the amino acid glycine would be an example of which of the following mutations?
a)
Frameshift
b)
Missense
c)
Nonsense
d)
Silent
6.
Which of the following mutations results in a non-functional protein because a stop codon appeared too early in the mRNA sequence?
a)
Frameshift
b)
Missense
c)
Nonsense
d)
Silent
7.
Which of the following mutations results from one nucleotide being substituted for another?
a)
Deletion
b)
Frameshift
c)
Insertion
d)
Point
8.
What is nondisjunction?
a)
The failure of chromosomes to separate.
b)
The separation of chromosomes during meiosis.
c)
The duplication of one segment of a chromosome.
d)
The deletion of one segment of a chromosome.
9.
Which of the following correctly describes trisomy?
a)
Having one too few chromosomes
b)
Having one too many chromosomes
c)
Have an extra copy of an entire set of chromosomes
d)
Having an entire set of chromosomes deleted
10.
In addition to Darwin, which scientists proposed that natural selection is the mechanism of evolution?
a)
Lamarck
b)
Lyell
c)
Malthus
d)
Wallace
11.
Which of the following individuals suggested that overpopulation will lead to competition and a struggle for existence?
a)
Darwin
b)
Lamarck
c)
Lyell
d)
Malthus
12.
Which of the following scientists suggested that the earth was actually millions of years old?
a)
Darwin
b)
Lyell
c)
Malthus
d)
Wallace
13.
Which of the following scientists suggested, incorrectly, that traits gained during an organism's life time are passed onto their offspring?
a)
Lamarck
b)
Lyell
c)
Malthus
d)
Wallace
14.
Which type of structures may look and function similarly but have different ancestral origins?
a)
Analogous structures
b)
Homologous structures
c)
Vestigial structures
15.
Which type of structures may have different functions even though they arose from the same ancestral origins?
a)
Analogous structures
b)
Homologous structures
c)
Vestigial structures
16.
Which type of structures are present in an organism but no longer serve a function?
a)
Analogous structures
b)
Homologous structures
c)
Vestigial structures
17.
Which type of selection results in fewer individuals with the average or intermediate form of the trait, effectively splitting the population into two groups?
a)
Directional
b)
Disruptive
c)
Stabilizing
18.
Which type of selection results in the loss of genetic diversity by favoring the intermediate form of a trait and eliminating the trait's extreme forms?
a)
Directional
b)
Disruptive
c)
Stabilizing
19.
Which type of isolation occurs when organisms mate at different times?
a)
Behavioral
b)
Geographic
c)
Temporal
20.
Which type of isolation occurs when organisms do different things to attract a mate?
a)
Behavioral
b)
Geographic
c)
Temporal
21.
Which type of reproductive isolation results from a physical barrier separating two groups of a population?
a)
Behavioral
b)
Geographic
c)
Temporal
22.
Which concept suggests that organisms best suited to their environment are more likely to survive and reproduce?
a)
Artificial Selection
b)
Common Descent
c)
Inheritance of Acquired Characteristics
d)
Natural Selection
23.
Which term refers to physical or behavioral traits that enable an organism's survival?
a)
Adaptation
b)
Fitness
c)
Homologous structures
d)
Vestigial structures
24.
Which term refers to an organism's ability to survive and produce viable offspring?
a)
Adaptation
b)
Fitness
c)
Speciation
d)
Variation
25.
Which of the following processes occurs when humans select the traits they want organisms to express?
a)
Artificial selection
b)
Common descent
c)
Natural selection
d)
Reproductive isolation
100 %
