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Multiple Choice
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1.
The most common cause of infertility in women is:
A)abnormal ova.
B)mucus in the cervix.
C)deterioration of the quality of the ova.
D)blockage of the fallopian tubes.
2.
Genes that can produce alternative expressions of a characteristic are called:
A)autosomes.
B)alleles.
C)monomorphic genes.
D)mutations.
3.
A degenerative disease of the brain and nerve cells that results in death before the age of five is called:
A)Tay-Sachs disease.
B)Beta thalassemia.
C)Spina bifida.
D)Phenylketonuria.
4.
Which of the following is true in regards to defects transmitted by dominant inheritance?
A)Children are affected only if both parents have dominant abnormal genes.
B)The defects include achondroplasia and Huntington's disease.
C)The defects are likely to be lethal at an early age.
D)The defects can be transmitted by carriers who do not have the disorder.
5.
Which of the following is not a sex chromosome abnormality?
A)Kleinfelter Syndrome
B)Turner Syndrome
C)Down Syndrome
D)Fragile X Syndrome
6.
Which of the following is true in regards to heritability?
A)Heritability findings are consistent across twin studies and adoption studies.
B)Heritability tells us how traits develop.
C)Heritability refers to the relative influence of heredity and environment in a particular individual.
D)Heritability indicates the statistical extent to which genes contribute to a trait.
7.
Studies that examine prenatal influences by comparing twins who developed in the same sac versus those who developed in separate sacs are called:
A)chorion control studies.
B)family studies.
C)developmental system studies.
D)co-twin control studies.
8.
An artistic parent is likely to create a home environment in which creative activities are valued and encouraged. In terms of the genotype-environment covariance, which type of correlation does this describe?
A)evocative
B)active
C)passive
D)reactive
9.
Which of the following describes a nonshared environmental effect for siblings?
A)family activities Incorrect. Review the "How Heredity and Environment Work Together" section in your textbook. b. c. d.
B)the house they live in
C)communication with parents
D)the people they live with
10.
Research on personality has revealed that:
A)temperament is largely established through experience.
B)temperament changes occur often throughout a person's lifetime.
C)shyness and boldness are not true personality characteristics.
D)there are genes directly linked to anxious behavior.





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