Child Development Practice Exm Chpt 2-4

75 Questions | Total Attempts: 116

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Child Development Practice Exm Chpt 2-4

A practice exam for the book Infants and Children by Laura E. Berk. Covers Chapter 2-4.


Questions and Answers
  • 1. 
    Humans share most of their DNA with:
    • A. 

      Bacteria

    • B. 

      Pigs

    • C. 

      Primates

    • D. 

      Reptiles

  • 2. 
    Between 1958 and the present, the percentage of North American couples that bear children declined from 78 percent to
    • A. 

      62%

    • B. 

      65%

    • C. 

      70%

    • D. 

      74%

  • 3. 
    During Stage 1 of childbirth, the uterine contractions begin
    • A. 

      2 to 3 minutes apart.

    • B. 

      7 to 8 minutes apart.

    • C. 

      10 to 20 minutes apart.

    • D. 

      30 to 40 minutes apart.

  • 4. 
    The essential function of meiosis is to
    • A. 

      Ensure that each generation receives a constant quantity of genetic material.

    • B. 

      Stimulate the production of zygotes.

    • C. 

      Prevent damaged genes from crossing over to the next generation.

    • D. 

      Regulate the process of mitosis.

  • 5. 
    Of the following factors, which is a cause of declining family size in industrialized nations?
    • A. 

      Earlier marriage.

    • B. 

      Marital instability

    • C. 

      Sexual abstinence

    • D. 

      Governmental policy.

  • 6. 
    During Stage 2 of childbirth, the mother
    • A. 

      Feels a natural urge to squeeze and push with her abdominal muscles.

    • B. 

      Pushes out the placenta.

    • C. 

      Has contractions 8 to 10 minutes apart.

    • D. 

      Transitions as her cervix opens completely.

  • 7. 
    Gametes that form in females carry
    • A. 

      Either an X or a Y chromosome.

    • B. 

      Only short chromosomes.

    • C. 

      An X chromosome.

    • D. 

      All the genetic material the human organism needs.

  • 8. 
    According to the U.S. National Longitudinal Survey of Youth, in general, the larger the family, the lower the mental test scores of the all the siblings, because
    • A. 

      Mothers who are low in intelligence tend to give birth to more children.

    • B. 

      The parents of such families are more likely to divorce.

    • C. 

      Mothers tend to be too busy to foster their children’s education.

    • D. 

      The homes of large families tend to be full of noise and other distractions.

  • 9. 
    The combination of small body and large head means that the infant
    • A. 

      Received too little oxygen during the birthing process.

    • B. 

      Has a well-developed brain that enables quick learning in the first few months.

    • C. 

      Bruised the mother’s cervix.

    • D. 

      Produced the proper amount of cortisol.

  • 10. 
    The frequency of identical twins is
    • A. 

      Much higher in industrialized nations.

    • B. 

      Slightly lower in Asia than elsewhere.

    • C. 

      The same around the world.

    • D. 

      Steadily rising in North America.

  • 11. 
    Male reproductive capacity gradually declines after age
    • A. 

      15

    • B. 

      20

    • C. 

      25

    • D. 

      30

  • 12. 
    The Apgar scale measures which of the following signs?
    • A. 

      Mental alertness and hand-eye coordination

    • B. 

      The speed with which the infant begins nursing

    • C. 

      Breathing, blinking, and kicking

    • D. 

      Heart rate, respiratory effort, reflex irritability, muscle tone, and color

  • 13. 
    The example of PKU illustrates the fact that
    • A. 

      Conditions once thought to be due to dominant-recessive inheritance actually result from multiple genes.

    • B. 

      Heterozygous individuals are not always carriers of recessive traits.

    • C. 

      Hair color and facial features are reasonably accurate predictors of inherited disabilities.

    • D. 

      Inherited recessive disorders do not always lead to untreatable conditions.

  • 14. 
    The largest cell in the human body is the
    • A. 

      Fallopian tube.

    • B. 

      Ovum.

    • C. 

      Zygote.

    • D. 

      Sperm.

  • 15. 
    The purpose of the natural childbirth movement that arose during the 1950s and 1960s was to
    • A. 

      Make hospital birth as comfortable and rewarding as possible.

    • B. 

      Introduce European-style freestanding birth centers to North America.

    • C. 

      Remove doctors entirely from the birthing experience.

    • D. 

      Persuade women to have their babies at home.

  • 16. 
    The sickle cell carrier rate is believed to be higher in Canada than in the United States because
    • A. 

      The risk of malaria is slightly higher in Canada.

    • B. 

      More African Canadians are recent immigrants than African Americans.

    • C. 

      Incomplete dominance patterns are more common throughout the entire Canadian population

    • D. 

      More African Canadians live at higher altitudes than African Americans.

  • 17. 
    Most conceptions result from intercourse
    • A. 

      Within 6 hours before or after ovulation.

    • B. 

      During the week of ovulation.

    • C. 

      On the day of or during the 2 days preceding ovulation.

    • D. 

      During the 2 hours before or after ovulation.

  • 18. 
    Research indicates that mothers who are supported during labor
    • A. 

      Are more likely to have an episiotomy.

    • B. 

      Prefer lying flat on their backs with their feet in stirrups.

    • C. 

      Are less likely to have cesarean births.

    • D. 

      Tend to be more nervous and, therefore, experience more birth complications.

  • 19. 
    The concept of genetic imprinting helps to explain why
    • A. 

      Children inherit certain parent-specific diseases.

    • B. 

      The rate of sickle cell anemia is rising among North Americans of European descent.

    • C. 

      Females are more likely to suffer the effects of X-linked inheritance.

    • D. 

      Fragile X syndrome results in 2 to 3 percent of autism cases.

  • 20. 
    During the period of the zygote, implantation occurs when the
    • A. 

      Blastocyst burrows into the uterine lining.

    • B. 

      Sperm penetrates and fertilizes the ovum.

    • C. 

      Trophoblast forms the chorion.

    • D. 

      Amnion encloses the developing organism.

  • 21. 
    Most chromosomal defects result from
    • A. 

      Radiation.

    • B. 

      Mistakes during meiosis.

    • C. 

      Somatic mutation.

    • D. 

      Prader-Willi syndrome.

  • 22. 
    Adding or subtracting from the usual number of X chromosomes results in
    • A. 

      Down syndrome.

    • B. 

      Facial abnormalities.

    • C. 

      Incomplete dominance.

    • D. 

      Particular intellectual deficits.

  • 23. 
    Candidates for genetic counseling typically are
    • A. 

      Women who have had three or more pregnancies.

    • B. 

      Men with XYY syndrome.

    • C. 

      Women of advanced maternal age.

    • D. 

      Individuals with Down syndrome.

  • 24. 
    The overall success rate of in vitro fertilization is 30 percent, but
    • A. 

      It often requires more ova than most women produce.

    • B. 

      Success declines steadily with age.

    • C. 

      That rate is far lower when the man has fertility problems.

    • D. 

      It can increase the risk of X-linked disease.

  • 25. 
    More people in North America and Western Europe are adopting from other countries because
    • A. 

      The availability of healthy babies in those regions has declined.

    • B. 

      Adoptable children in their own countries are often past infancy.

    • C. 

      Adopted children tend to have fewer learning and emotional difficulties.

    • D. 

      They can select children like themselves in personality and background.

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