61.
Family studies fail to rule out the extent to which environmental factors influence certain traits. To separate the effects of heredity from those of environment, researchers do
A.
twin studies.
B.
experimental studies.
C.
adoption studies.
D.
longitudinal studies.
62.
Who would show more concordance for a chiefly hereditary trait?
A.
Fraternal twins
B.
Identical twins
C.
Both identical and fraternal twins
D.
Siblings who are not twins
63.
Although Jean-Paul’s adoptive parents are quite short, he is growing to be quite tall like his biological mother. What might we conclude about Jean-Paul’s height?
A.
It is influenced primarily by the positive environment of the adoptive family.
B.
It is influenced primarily by heredity.
C.
Nutrition did not influence his height.
D.
It is primarily a result of independent segregation.
64.
Which of the following most clearly demonstrates the influence of environment?
A.
Bill, who was adopted at birth, died at the same age as his biological father.
B.
Patty, who was adopted at the age of 2, walks like her adoptive mother.
C.
Matt and Jason, identical twins who were separated at birth, are both overweight.
D.
Marie and Amy are fraternal twins who were reared apart. Marie has high blood pressure and Amy does not.
65.
Which of the following statements about the influences of heredity and environment is correct, according to your textbook?
A.
A person’s height is determined by his or her genes.
B.
A person’s potential range of height is genetically determined, but actual height may be influenced by nutrition.
C.
The genetic upper limit or range of height can be raised by improved nutrition.
D.
Nutrition is more important than genetic limits or range.
66.
Concordant rates provide researchers information concerning the _____ of a given trait.
A.
heritability
B.
genetic makeup
C.
relevance
D.
genetics
67.
Professor MacArthur is interested in studying the relative contribution of genetics and the environment on athletic ability. The professor is most interested in
A.
heritability.
B.
sex-linked recessive disorders.
C.
genetic mutations.
D.
canalization.
68.
The fact that language development proceeds in a very standard, sequenced manner in nearly all children, suggests that language development
A.
has a broad reaction range.
B.
is highly canalized.
C.
is highly susceptible to environmental influence.
D.
is governed primarily by environmental factors.
69.
Of the following, the child likely to exhibit the SMALLEST reaction range for the trait of intelligence is the one born with
A.
severe brain damage.
B.
mild brain damage.
C.
parents of normal intelligence.
D.
parents of extremely high intelligence.
70.
A strongly canalized trait is one that
A.
is easily influenced by environmental conditions.
B.
is affected little by environmental conditions.
C.
only appears in certain situations.
D.
has a large reaction range.
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