A Child’s World Infancy Through Adolescence 13th Edition By Gabriela Martorell

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Sample Test

Chapter 03

Forming a New Life: Conception, Heredity, and Environment

Multiple Choice Questions

1. Bronfenbrenner’s _____ approach examines the layers of social systems and how these layers interact.
A.interactionist
B. bioecological
C. behaviorist
D. cognitive

refer to page 60

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Conceiving new life.

2. Which of the following factors can have vast consequences on a child’s development?
A.Whether the birth comes about through normal or extraordinary means
B. Whether the birth is welcome or unwanted
C. How old the parents are when the child is conceived or adopted
D. All of the above

refer to page 60

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Conceiving new life.

3. ______ suggested that the production of male babies was the natural order of things and that a female came about only if development was disturbed.
A.Bronfenbrenner.
B. Aristotle.
C. Skinner.
D. Mendel.

refer to page 61

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Conceiving new life.

4. The union of sperm and ovum to produce a zygote is known as
A.the two-seed theory.
B. ovulation.
C. attachment.
D. fertilization.

refer to page 61

APA LO: 5.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Recall the process of fertilization.

5. In fertilization, the male and the female gametes combine to create a single cell called a(n) _____, which then duplicates itself again and again to become a baby.
A.zygote
B. ovum
C. sperm
D. follicle

refer to page 61

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Recall the definition of zygote.

6. Ovulation refers to the
A.fertilization of an ovum by a sperm.
B. expulsion of an ovum from the ovary.
C. passage of an ovum through the vagina and out of the woman’s body.
D. absorption of an ovum by the woman’s white blood cells.

refer to page 61

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Recall the process of fertilization.

7. Fertilization usually takes place in the _____ as the ovum make the trip from the ovary to the uterus.
A.womb
B. fallopian tube
C. ovaries
D. cervix

refer to page 61

8. Sperm are produced in the _____ at a rate of several hundred million a day and are ejaculated in the semen during sexual climax.
A.ovary
B. cervix
C. testes
D. uterus

refer to page 61

9. Daniel and Nellie are hoping to maximize Nellie’s chances of becoming pregnant. When should they have intercourse?
A.between the 6^th and 21^st days of the menstrual cycle
B. 5 days after the onset of ovulation
C. 14 days after the onset of menstruation
D. 28 days after the onset of menstruation

refer to page 61

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.1: Describe how conception normally occurs, and how beliefs about conception changed.
Learn Smart LO: Recall the process of fertilization.

10. Infertility is the inability to conceive after _____ months of trying to have a baby.
A.3 to 6
B. 6 to 9
C. 9 to 12
D. 12 or more

refer to page 61

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall infertility.

11. A common female cause of infertility is
A.underproduction of ova.
B. abnormal ova.
C. blockage of the fallopian tube.
D. disease of the uterine lining, which prevents implantation of the fertilized ovum.

refer to page 62

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall causes of infertility.

12. The most common cause of infertility in men is
A.low sperm production.
B. impotence.
C. use of over-the-counter medications.
D. premature ejaculation.

refer to page 62

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall causes of infertility.

13. Which of the following is NOT true about infertile couples?
A.A common cause in females is blockage of the fallopian tubes.
B. Drug therapy can sometimes correct the problem.
C. Hormone treatment may raise a man’s sperm count.
D. Surgical treatments are ineffective.

refer to page 62

APA LO: 1.2
Bloom’s Taxonomy: Understand
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall causes of infertility.

14. Dan and Fiona have decided to utilize technology to overcome their infertility problems. They opt for a procedure in which a mature ovum is surgically removed, fertilized in a laboratory dish, and then implanted in the woman’s uterus. This technique is called
A.artificial insemination.
B. in vitro fertilization.
C. gamete intrafallopian transfer.
D. zygote intrafallopian transfer.

refer to page 62

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall Alternative ways to parenthood: Assisted reproductive technology.

15. Fred and Wilma have discovered that their infertility is due to Fred’s extremely low sperm count. In an attempt to get pregnant, Wilma has a doctor inject a collection of her husband’s sperm directly into her cervix. This procedure is called
A.in vitro fertilization.
B. sperm transfer.
C. artificial insemination.
D. ovum transfer.

refer to page 65

16. Medical technology is now able to offer couples several methods of bypassing the normal process of conception. These methods include
A.ovum transfer.
B. artificial insemination.
C. in vitro fertilization.
D. all of the above.

refer to pages 62-66

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.2: Understand what causes infertility, and the alternative ways of becoming parents.
Learn Smart LO: Recall Alternative ways to parenthood: Assisted reproductive technology.

17. The science of genetics focuses on the
A.inherited factors that affect development.
B. effects of environmental influences on phenotypic development.
C. development of abnormal, rather than normal, behaviors and traits.
D. processes involved in fertilization.

refer to page 66

APA LO: 5.2
Bloom’s Taxonomy: Remember
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of genes.

18. Stacy wants to learn more about the sequence of base parts within DNA that determine inherited characteristics. Stacy is interested in
A.autosomes.
B. multifactorial transmission.
C. genome imprinting.
D. the genetic code.

refer to page 67

APA LO: 5.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of genetic code.

19. The chemical that carries inherited instructions for the development of all cellular forms of life is called
A.a teratogenic substance.
B. adenosine monophosphate.
C. arachidonic acid.
D. deoxyribonucleic acid.

refer to page 67

20. The _____ is the basic unit that determines inherited characteristics.
A.zygote
B. gene
C. follicle
D. gamete

refer to page 67

21. Which of the following are made up of DNA (deoxyribonucleic acid)?
A.Gametes
B. Gymnosperm
C. Androsperm
D. Genes

refer to page 67

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of genes.

22. How many pairs of chromosomes does a typically developing human being have?
A.22
B. 23
C. 44
D. 46

refer to page 67

23. A cell that has divided through mitosis possesses _____ chromosomes, whereas a cell that has undergone meiosis possesses _____ chromosomes.
A.23 pairs of ; 23
B. 46 pairs of ; 46
C. 23 ; 46
D. 23 chromosomes; 23 pairs of

refer to page 67

APA LO: 5.2
Bloom’s Taxonomy: Understand
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of chromosomes.

24. The process of cell division that produces copies of cells with 46 chromosomes is called
A.diffusion.
B. meiosis.
C. translocation.
D. mitosis.

refer to page 67

25. Meiosis
A.results in two cells, each with 46 chromosomes.
B. reduces the number of chromosomes by half.
C. refers to the addition of an extra 21^st chromosome.
D. is the process by which the egg and sperm combine.

refer to page 67

26. Each ovum possesses _____ chromosomes, and each sperm possesses _____ chromosomes.
A.23 ; 46
B. 46 ; 23
C. 23 pairs of ; 26 pairs of
D. 23 ; 23

refer to page 68

27. Child A’s sex chromosomes are XX, and Child B’s sex chromosomes are XY. Child A is a(n) ______ and Child B is a(n) _______.
A.identical twin; fraternal twin
B. fraternal twin; identical twin
C. boy; girl
D. girl; boy

refer to page 68

28. Harry’s wife is pregnant with a child whose sex chromosome is XY. Harry and his wife are
A.heterozygous.
B. having a girl.
C. having a boy.
D. homozygous.

refer to page 68

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of sex chromosomes.

29. The chromosomes that do NOT determine sex are called
A.zygotes.
B. genes.
C. gametes.
D. autosomes.

refer to page 68

30. Lewis has wanted a son for as long as he can remember. He has put a great deal of pressure on his pregnant wife. She constantly reminds him that that the sex of the child was determined at conception by the
A.genotype of the autosomes of the ovum.
B. genotype of the sex chromosomes of the ovum.
C. genotype of the sperm that fertilized the ovum.
D. phenotype of the sperm that fertilized the ovum.

refer to page 68

31. The sex of a child is determined by the sex chromosomes of
A.the mother.
B. the father.
C. both the mother and the father.
D. neither the mother nor the father.

refer to page 68

APA LO: 1.2
Bloom’s Taxonomy: Understand
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall the definition of sex chromosomes.

32. The X and Y chromosomes are referred to as the
A.sex chromosomes.
B. autosomes.
C. DNA.
D. meiotic autosomes.

refer to page 68

33. During the 1860s, Gregor Mendel conducted experiments that laid the foundation for understanding
A.patterns of inheritance.
B. intelligence.
C. meiosis and mitosis.
D. prenatal development.

refer to page 69

34. According to Mendel’s findings,
A.genes occur singly, never in pairs.
B. genes do not have fixed positions on chromosomes.
C. individual traits blend into one another.
D. hereditary traits are transmitted separately.

refer to page 69

35. Genes that produce alternative expressions of a trait are called
A.gametes.
B. alleles.
C. autosomes.
D. karyotypes.

refer to page 69

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Define alleles.

36. If Ekaterina is homozygous for a particular trait, what will she pass on to her offspring?
A.only one kind of gene for that trait
B. either of two kinds of genes for that trait
C. a sex-linked gene for that trait
D. no gene for that trait

refer to page 69

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall heterozygous.

37. Matu received identical genes for hair color from each of his parents. We would say that Matu is _____ for that trait.
A.homozygous
B. monozygous
C. heterozygous
D. dizygous

refer to page 69

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall heterozygous.

38. If Carol and Robert both pass on the gene for red hair, their child will have red hair. This is an example of _____ inheritance.
A.dominant
B. recessive
C. sex-linked
D. multiple-allele

refer to page 69

39. If Darla has albinism but neither of her parents exhibit this inherited condition, the trait must be _____ and Darla’s genotype for this trait is _____.
A.dominant; homozygous
B. recessive; homozygous
C. dominant; heterozygous
D. recessive; heterozygous

refer to page 69

40. Ulrich is heterozygous for a trait; therefore, he displays the _____ trait in his phenotype.
A.recessive
B. dominant
C. dominant-recessive
D. genotypic

refer to page 69

41. Suzanne has brown eyes but also carries a gene for blue eyes. Suzanne is _____ for the trait of eye color.
A.homozygous
B. unizygous
C. monozygous
D. heterozygous

refer to page 69

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Recall heterozygous.

42. Permanent genetic alterations that may produce harmful characteristics are called
A.transmissions.
B. mutations.
C. dominant-recessive alterations.
D. selective alterations.

refer to page 70

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Define mutations.

43. Melvin grew up near the Three Mile Island nuclear plant when the meltdown occurred. An analysis of his genetic material indicates changes that are consistent with radiation exposure. The term that describes such genetic or chromosomal alteration is called
A.mutation.
B. transmission.
C. transduction.
D. selective alteration.

refer to page 70

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.3: Understand which genetic mechanisms determine sex, physical appearance, and other characteristics.
Learn Smart LO: Define mutations.

44. An individual’s _____ consists of that individual’s observable traits; an individual’s _____ is his/her underlying genetic pattern.
A.dominant inheritance; heterozygosis
B. dominant inheritance; homozygosis
C. genotype; phenotype
D. phenotype; genotype

refer to page 70

45. Petra would like to replicate herself. However, she needs to realize that, although cloning can produce identical _____, it cannot produce identical _____.
A.phenotypes; genotypes
B. heredity; environments
C. genotypes; phenotypes
D. genotypes; alleles

refer to page 70

46. Louise’s blue eyes and petite frame are observable characteristics and are part of her
A.alleles.
B. genetic imprint.
C. phenotype.
D. genotype.

refer to page 70

47. Brooklyn has curly hair but carries a gene for straight hair. Her phenotype is
A.curly hair.
B. straight hair.
C. unknown.
D. her total genetic makeup.

refer to page 70

48. When the police ask you to give a description of an assailant and you say that she is tall with black, curly hair, you are describing the assailant’s
A.incomplete dominance.
B. genetic pattern.
C. phenotype.
D. genotype.

refer to page 70

49. The differential expression of certain genetic traits is known as
A.genome imprinting.
B. genome splitting.
C. chromosome imprinting.
D. chromosome splitting.

refer to page 72

50. Which of the following statements best describes the concept of multifactorial transmission?
A.One or two genes determine many obvious psychological characteristics, such as intelligence.
B. Offspring with multiple recessive genes often do not survive to transmit those genes.
C. The environment and many different genes interact to determine most psychological traits.
D. The expression of dominant genes is solely influenced by hereditary factors, whereas the expression of recessive genes is strongly influenced by environmental factors.

refer to page 71

51. Which of the following is NOT true about epigenetics?
A.It is a mechanism that turns genes on or off.
B. It refers to chemical molecules attached to a gene that “reads” the gene’s DNA.
C. Its name is derived from the prefix meaning “on or above” the genome.
D. Epigenetic changes are hereditary not environmental.

refer to page 72

52. Krystal was ill as a baby, and before she was a year old, she was diagnosed with _____, a genetic defect that causes thick mucus to clog the breathing passages and the digestive system.
A.cystic fibrosis
B. Down syndrome
C. neural tube defect
D. Huntington’s disease

refer to page 73

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain chromosomal and gene-linked abnormalities.

53. When both parents carry an abnormal recessive gene, such as the gene for cystic fibrosis, each of their children has 1 chance in:
A.2 of being a carrier.
B. 4 of being a carrier.
C. 2 of receiving two abnormal recessive genes.
D. 2 of receiving two normal genes.

refer to page 74

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain chromosomal and gene-linked abnormalities.

54. Baby Shanna has been diagnosed with Tay-Sachs disease. However, neither of her parents has shown symptoms of this disease. What can we conclude from this information?
A.Shanna is heterozygous for the Tay-Sachs gene.
B. Shanna’s parents are homozygous for the Tay-Sachs gene.
C. Shanna is homozygous for the Tay-Sachs gene.
D. One of Shanna’s parents is a carrier of Tay-Sachs, the other is not.

refer to page 74

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain chromosomal and gene-linked abnormalities.

55. Which birth defect afflicts African Americans more than it does other ethnic groups?
A.Tay-Sachs disease
B. sickle-cell anemia
C. cystic fibrosis
D. Cooley’s anemia

refer to page 74

APA LO: 1.2
Bloom’s Taxonomy: Understand
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain chromosomal and gene-linked abnormalities.

56. Arnold underwent genetic testing to determine whether he has the gene for Huntington’s disease. The test confirmed that he does have it. This is an example of transmission by _____ inheritance.
A.recessive
B. dominant
C. sex-linked
D. multifactorial

refer to page 74

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain chromosomal and gene-linked abnormalities.

57. A pattern of inheritance in which certain characteristics carried on the X chromosome inherited from the mother are transmitted differently to her male and female offspring is called ______ inheritance.
A.recessive
B. dominant
C. multifactorial
D. sex-linked

refer to page 75

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain sex-linked genes such as x-linked inheritance

58. Gerald suffers from hemophilia, a blood-clotting disorder. He understands that the gene responsible for this disorder is carried by females but usually affects only males. This is an example of _______ inheritance.
A.heterozygous
B. dominant
C. sex-linked
D. recessive

refer to page 75

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain sex-linked genes such as x-linked inheritance

59. Sex-linked traits
A.are usually passed from father to son.
B. are never manifested in females.
C. can be carried by females who do not display them.
D. are carried by dominant genes.

refer to page 75

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain sex-linked genes such as x-linked inheritance

60. John has hemophilia, a sex-linked, blood-clotting disorder transmitted by a recessive gene. Neither his mother nor his father has symptoms of this disease. What can we conclude about the genetic makeup of John’s parents?
A.Both of his parents have the faulty gene.
B. The mother is a carrier of hemophilia, but the father does not have the gene.
C. The mother is homozygous for the faulty gene, whereas the father is heterozygous.
D. The father has the faulty gene, whereas the mother does not.

refer to page 75

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain sex-linked genes such as x-linked inheritance

61. Klinefelter syndrome and Turner syndrome are caused by abnormalities of the
A.autosomes.
B. sex chromosomes.
C. teratogens.
D. phenotypes.

refer to page 76

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Explain sex-linked genes such as x-linked inheritance

62. A chromosomal disorder characterized by moderate-to-severe mental retardation and a downward-sloping skin fold at the inner corners of the eyes is called
A.cystic fibrosis.
B. Tay-Sachs disease.
C. Down syndrome.
D. sickle-cell anemia.

refer to page 76

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Recall the definition of Down syndrome.

63. Which of the following statements regarding Down syndrome is FALSE?
A.The vast majority of genetic abnormalities are associated with the mother’s ovum.
B. There is no connection to paternal genetic abnormalities.
C. Down syndrome is also called trisomy-21.
D. The risk of having a child with Down syndrome increases with parental age.

refer to pages 76, 77

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Recall the definition of Down syndrome.

64. Which of the following is NOT the responsibility of a genetic counselor?
A.Taking a family history of prospective parents
B. Making clients aware of the statistical probabilities of certain genetic conditions
C. Presenting options of alternative courses of action
D. Advising clients on which course of action to take

refer to page 78

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Describe genetic counseling.

65. A karyotype is a(n)
A.abnormal genotype.
B. abnormal phenotype.
C. photographic chart of chromosomal abnormalities.
D. test of developing fetal cells.

refer to page 78

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.4: Describe how birth defects and disorders are transmitted.
Learn Smart LO: Describe genetic counseling.

66. The misconception that individuals with a specific gene are destined to inherit that disease is called
A.gene mapping.
B. human genome.
C. genetic engineering.
D. genetic determinism.

refer to page 79

APA LO: 1.2
Bloom’s Taxonomy: Remember
Connect LO: 3.5: Explain how scientists study the relative influences of heredity and environment, and how heredity and environment work together.
Learn Smart LO: Studying heredity and environment.

67. It eventually may be possible to treat inherited diseases by repairing or replacing abnormal genes through
A.genetic counseling.
B. gene therapy.
C. genome replication.
D. phoneme therapy.

refer to page 79

APA LO: 1.2
Bloom’s Taxonomy: Understand
Connect LO: 3.5: Explain how scientists study the relative influences of heredity and environment, and how heredity and environment work together.
Learn Smart LO: Describe genetic counseling.

68. Brynn carries the gene for heart disease. She now believes that no matter what steps she takes to protect her health, she will have a heart attack in the future. Brynn’s misconception is known as
A.genetic variability.
B. genetic determinism.
C. biological destiny.
D. a false positive.

refer to page 79

APA LO: 1.2
Bloom’s Taxonomy: Apply
Connect LO: 3.5: Explain how scientists study the relative influences of heredity and environment, and how heredity and environment work together.
Learn Smart LO: Describe genetic counseling.

69. The quantitative study of relative hereditary and environmental influences on behavior is called
A.genetic testing.
B. qualitative genetic research.
C. cognitive genetics.
D. behavioral genetics.

refer to page 80

APA LO: 5.2
Bloom’s Taxonomy: Remember
Connect LO: 3.5: Explain how scientists study the relative influences of heredity and environment, and how heredity and environment work together.
Learn Smart LO: Explain behavioral genetics.

70. A statistical estimate of how much heredity influences individual differences in a specific trait at a certain time within a given population is referred to as
A.inheritance.
B. heritability.
C. heredity.
D. genetics.

refer to page 80

APA LO: 5.1
Bloom’s Taxonomy: Remember
Connect LO: 3.5: Explain how scientists study the relative influences of heredity and environment, and how heredity and environment work together.
Learn Smart LO: Define heritability.

71. In attempting to study the degree to which genetics influences activity levels in newborns, a researcher compares monozygotic and dizygotic twins for their level of similarity on that trait. This research is attempting to determine the _____ of the trait activity levels.
A.phenotype
B. genotype
C. karyotype
D. heritability

refer to page 80

72. Doug has been recruited for a family study looking at the heritability of personality traits. Who else will most likely be included in the study?
A.Doug’s brother or sister
B. Doug’s spouse
C. Doug’s closest friends
D. Doug’s first cousins

refer to page 80

73. Although Roberto’s adoptive parents are short in stature, he is growing to be tall like his biological mother. What might we conclude about Roberto’s height?
A.It is influenced primarily by environmental factors.
B. It is influenced primarily by hereditary factors.
C. Nutrition did not contribute to his height.
D. It is primarily a result of independent segregation.

refer to page 80

74. Which of the following most clearly demonstrates the influence of environment?
A.Georgio, who was adopted at birth, and died at the same age as his biological father did
B. Sally, who was adopted at the age of 2, and walks like her adoptive mother
C. Bill and Jim, identical twins who were separated at birth, and are both overweight
D. Ann and Jennie, fraternal twins who were reared apart, only Ann has high blood pressure

refer to page 80

75. Susan and Betty are monozygotic twins, whereas Ming and Li are dizygotic twins. If a particular trait is determined primarily by hereditary factors, what would be the relative degree of concordance in these two twin pairs?
A.Ming and Li are more concordant than are Susan and Betty.
B. Susan and Betty are more concordant than are Ming and Li.
C. Given similar environments, the two sets of twins are equally concordant.
D. It is not possible to determine concordance from studying twins.

refer to page 81

76. Scientists generally accept that
A.human development is determined almost entirely by heredity.
B. human development is determined almost entirely by environment.
C. heredity and environment constantly interact to shape human development.
D. hereditary and environmental influences on human development are impossible to identify.

refer to pages 81, 82

77. Which of the following statements about the influences of heredity and environment is correct?
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 increased by improved nutrition.
D. Nutrition is more important than are genetic limits or range.

refer to pages 81, 82

78. Depending on environmental conditions, the potential variability in the expression of a hereditary trait is called
A.canalization.
B. genetics.
C. reaction range.
D. environmental interaction.

refer to page 82

79. Which child is likely to exhibit the smallest reaction range for the trait of intelligence?
A.A child born with severe brain damage
B. A child born to parents with low intelligence
C. A child born to parents with normal intelligence
D. A child born to parents with extremely high intelligence

refer to page 82

80. Despite many variations in environmental conditions and rearing practices, most children learn to walk at about the same time and in the same sequence. We would say that walking is a ______ trait.
A.recessive
B. dominant
C. monozygotic
D. canalized.

refer to page 82

81. Traits that exhibit a _____ degree of canalization will have a _____ reaction range.
A.low; narrow
B. high; wide
C. high; narrow
D. low; nonexistent

refer to page 82

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