Anthro 101 Exam 2 Questions and
Answers Graded A+
During the eighteenth century, many scholars became interested in biological
diversity, human origins, and our position within the classification of plants and
animals. At that time, the most commonly accepted explanation of the origin of
species was - Correct answer-creationism, the belief that biological similarities and
differences originated at Creation and that these characteristics, once set, could not
change.
Although Darwin became the best-known evolutionist, the idea of evolution had
been around well before him. Darwin's key contribution was to propose a
mechanism that drives evolution, which is known as - Correct answer-natural
selection.
The example of the sickle-cell allele demonstrates a key aspect of evolution
through natural selection, in that - Correct answer-adaptation and fitness are in
relation to specific environments; traits are not universally adaptive or
maladaptive.
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, Which of the following statements about the HbS allele is FALSE? - Correct
answer-Homozygous individuals usually develop fatal cases of dysentery.
Natural selection is the only mechanism driving genetic evolution.
Question options: - Correct answer-False
For natural selection to work on a particular population, - Correct answer-there
must be variety within that population.
Recessive traits are expressed only in homozygous individuals. - Correct answer-
True
Genotype refers to expressed physical traits based on their genetic makeup. -
Correct answer-False
Mutations introduce genetic variation into a gene pool. - Correct answer-True
Which of the following statements about the concept of race as applied to humans
is TRUE? - Correct answer-It is a discredited concept in biology.
In theory, a biological race is a geographically isolated subdivision of a species.
Humanity (Homo sapiens) lacks such races because - Correct answer-human
populations have not been isolated enough from one another to develop such
discrete groups.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Answers Graded A+
During the eighteenth century, many scholars became interested in biological
diversity, human origins, and our position within the classification of plants and
animals. At that time, the most commonly accepted explanation of the origin of
species was - Correct answer-creationism, the belief that biological similarities and
differences originated at Creation and that these characteristics, once set, could not
change.
Although Darwin became the best-known evolutionist, the idea of evolution had
been around well before him. Darwin's key contribution was to propose a
mechanism that drives evolution, which is known as - Correct answer-natural
selection.
The example of the sickle-cell allele demonstrates a key aspect of evolution
through natural selection, in that - Correct answer-adaptation and fitness are in
relation to specific environments; traits are not universally adaptive or
maladaptive.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Which of the following statements about the HbS allele is FALSE? - Correct
answer-Homozygous individuals usually develop fatal cases of dysentery.
Natural selection is the only mechanism driving genetic evolution.
Question options: - Correct answer-False
For natural selection to work on a particular population, - Correct answer-there
must be variety within that population.
Recessive traits are expressed only in homozygous individuals. - Correct answer-
True
Genotype refers to expressed physical traits based on their genetic makeup. -
Correct answer-False
Mutations introduce genetic variation into a gene pool. - Correct answer-True
Which of the following statements about the concept of race as applied to humans
is TRUE? - Correct answer-It is a discredited concept in biology.
In theory, a biological race is a geographically isolated subdivision of a species.
Humanity (Homo sapiens) lacks such races because - Correct answer-human
populations have not been isolated enough from one another to develop such
discrete groups.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
