Human Genetics: Concepts and Applications (Lewis), 9th Edition

Chapter 16: Human Ancestry

Practice Tests

1
Hominoids are ancestral to _____.
A)apes
B)humans
C)both apes and humans
D)neither apes nor humans
2
The famous fossilized partial skeleton, "Lucy", an Australopithecus that may have been our direct ancestor, lived about ______ years ago.
A)3,600
B)36,000
C)360,000
D)3,600,000
3
What species of Australopithecus did Lucy most likely belong to?
A)A. anamensis
B)A. garhi
C)A. afarensis
D)A. africanus
4
Complex tool and agriculture were the defining skills of the ____ period dating from 10,000 years ago.
A)Paleolithic
B)Mesolithic
C)Neolithic
D)Telolithic
5
The "missing link" between Australopithecines and the earliest members of Homo may have been _____.
A)Australopithecus africanus
B)Australopithecus garhi
C)Homos erectus
D)Homo habilis
6
An evolutionary tree showing the relationships among past and present primates indicates _____.
A)gorillas and bonobos are closely related
B)chimpanzees and bonobos are closely related
C)humans are more closely related to gorillas than they are to chimpanzees
D)species of Homo preceded species of Australopithecus
7
Fossil evidence indicates that from 30,000 to 40,000 years ago, ____ coexisted with ____.
A)Australopithecus; Neanderthals
B)Homo habilis; Cro-Magnons
C)Australopithecus; Cro-Magnons
D)Cro-Magnons; Neanderthals
8
Cutting tools, bows, and arrows were the defining skills of the ____ period dating 10-15,000 years ago.
A)Paleolithic
B)Mesolithic
C)Neolithic
D)Telolithic
9
Several species of ____ lived from 2-4 million years ago and walked upright.
A)Dryopithecus
B)Australopithecus
C)Homo
D)Hablo
10
____ made tools out of bone and stone, used fire, and dwelled communally in caves.
A)Dryopithecus
B)Australopithecus
C)Homo erectus
D)Homo habilis
11
Animals ancestral to humans but not to apes are called _____.
A)hominoids
B)hominins
C)bipedals
D)This animal is, as yet, unidentified.
12
Which of the following is not a direct ancestor in our evolutionary past?
A)Cro-Magnon
B)H. erectus
C)H. habilis
D)Neanderthals
13
True or False. The rate of DNA hybridization reflects the degree of evolutionary relatedness.
A)True
B)False
14
Molecular evolution is based on the assumption that the more recently two species shared a common ancestor, the more alike their _____.
A)stained chromosome bands
B)DNA sequences
C)protein sequences
D)All of the above
15
A 180-base sequence of DNA found in the genome of many species that controls body formation is called a _____.
A)conserved gene
B)cytochrome c
C)molecular clock
D)homeobox
16
Human chromosome banding patterns match most closely those of _____.
A)chimpanzees
B)monkeys
C)gorillas
D)orangutans
17
One difference between humans and chimps that might stem from a single gene is _____.
A)language
B)opposable thumbs
C)hairiness
D)size of frontal lobes
18
Genes in the same order on chromosomes in different species are _____.
A)conserved
B)syntenic
C)hybridized
D)None of the above
19
Which of the following is identical for all mammals?
A)chromosome number
B)X chromosome banding patterns
C)location of centromeres
D)translocations
20
What is cytochrome c involved in?
A)homeobox functions
B)DNA duplications
C)energy pathways in the mitochondria
D)hairiness in humans
21
Analysis of mitochondrial DNA reveals that the ancestors of Native Americans probably came from:
A)Albania
B)Chile
C)Mongolia
D)Siberia
22
What genetic information can be used to trace maternal lineage?
A)X-chromosome
B)Y-chromosome
C)nuclear genes
D)mitochondrial genes
23
What genetic information can be used to trace paternal lineage?
A)X-chromosome
B)Y-chromosome
C)nuclear genes
D)mitochondrial genes
24
____ is a statistical method used to identify the likely evolutionary tree from DNA data.
A)Parsimony analysis
B)Replacement hypothesis
C)Multiregionalism hypothesis
D)Chi-square
25
Mitochondrial Eve is hypothesized to have lived ____ years ago in ____.
A)50,000; Africa
B)100,000; Mongolia
C)200,000; Africa
D)300,000; Asia
26
Which of the following is best used to trace the historic movements of people around the globe?
A)X chromosome
B)proteins
C)mtDNA
D)SNPs
27
True or False. Different genes evolve at different rates.
A)True
B)False
28
A group of SNPs that defines a long stretch of DNA is a _______.
A)chromosome band
B)haplogroup
C)parsimonious DNA sequence
D)molecular clock
29
The idea of mitochondrial Eve is part of the ______ hypothesis.
A)Common ancestry
B)Multiregional
C)Out of Africa
D)Parsimony
30
Which of the following statements is correct?
A)A haplogroup may come from more than one geographic region.
B)mtDNA and Y chromosome DNA testing sample more than 90% of the human genome.
C)mtDNA and Y chromosome DNA trace all genetic lineages.
D)All human haplogroups in the world are known.
31
A(n) ____ gene or protein is one in which the DNA sequence is similar or identical in different species, and presumably indicates importance.
A)random
B)inherited
C)highly conserved
D)syntenic
32
Humans and chimps share ____ percent of their protein-encoding gene sequences.
A)98.7
B)93.8
C)91.9
D)90.0
33
____ considers differences at the genome, chromosome, protein, or DNA sequence levels with mutation rates to estimate species relatedness.
A)Positive eugenics
B)Negative eugenics
C)Molecular evolution
D)DNA hybridization
34
____ are used to study human origins and expansions.
A)Only mtDNA sequences
B)Only Y chromosomes
C)Both mtDNA sequences and Y chromosomes
D)Neither mtDNA nor Y chromosomes
35
At least ____ types of hominins lived about 6 million years ago, shortly after the split from the chimp lineage.
A)three
B)four
C)six
D)eight
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