Psychology - Life Span - Chapter 3 - Pt 2

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Psychology 237 Life Span

  
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  • 1. 
    Each molecule of DNA is called a:
    • A. 

      Ovum

    • B. 

      Zygote

    • C. 

      Cell

    • D. 

      Chromosome


  • 2. 
    The chemicals that send instructions to cells are:
    • A. 

      A, R, E, and T

    • B. 

      A, T, C, and G

    • C. 

      A, T, G, and F

    • D. 

      A, T, C, and B


  • 3. 
    A person's genetic inherited potential is called the _______, while a person's actual appearance and behavior is called the________.
    • A. 

      Genotype; phenotype

    • B. 

      Autotype; phenotype

    • C. 

      Phenotype; genotype

    • D. 

      Somatotype; genotype


  • 4. 
    Approximately the same number of males and females are born every year. If scientists found a way to cure stressful pregnancies, how would this effect the number of males born every year:
    • A. 

      The number of males born would increase

    • B. 

      The number of the males born would decrease

    • C. 

      The number of the males born would stay the same

    • D. 

      The number of the males born would be unpredictable


  • 5. 
    Differentiation occurs when:
    • A. 

      The sperm and ovum meet

    • B. 

      The combined material from both gametes mesh together

    • C. 

      The zygote reaches the 4-cell stage

    • D. 

      Cells begin to specialize


  • 6. 
    The genetic explanation for the differences between chimps and humans concerns differences in:
    • A. 

      Regulator genes

    • B. 

      The overall number of genes

    • C. 

      The three-dimensional structure of the DNA molecule

    • D. 

      The size of the Y chromosome


  • 7. 
    Additive genes contribute to the:
    • A. 

      Dominant-recessive pattern

    • B. 

      Genotype

    • C. 

      Phenotype

    • D. 

      Gamete


  • 8. 
    What is the correct order of the processes that occur after a zygote is formed?
    • A. 

      Chromosomes divide in half and then duplicate and differentiate

    • B. 

      23 Pairs of chromosomes duplicate, differentiate, and divide several times

    • C. 

      23 Pairs of chromosomes duplicate, divide several times, and then cells differentiate

    • D. 

      The zygote divides, replicates, and then differentiates several times


  • 9. 
    A slight variation of a particular gene is called an:
    • A. 

      Autosome

    • B. 

      Allele

    • C. 

      Ovum

    • D. 

      Amino acid


  • 10. 
    Most humans have ____ pair(s) of autosomes and ____ pair(s) of sex chromosome
    • A. 

      20; 1

    • B. 

      22; 1

    • C. 

      21; 2

    • D. 

      21; 1


  • 11. 
    In the United States, it is illegal to:
    • A. 

      Surgically insert two groups of cells that have been separated from an in vitro fertilized ovum

    • B. 

      Perform selective abortion on multiple embryos that have been implanted

    • C. 

      Surgically insert cells that are in vitro fertilized, duplicated, and beginning to divide

    • D. 

      Clone cells


  • 12. 
    IVF zygotes have been surgically implanted into Norma's womb.  What is the chance of one of them implanting and developing?
    • A. 

      A 60 percent chance of implanting and developing

    • B. 

      A 50 percent chance of implanting and developing

    • C. 

      A 30 percent chance of implanting and developing

    • D. 

      Almost no chance of implanting and developing


  • 13. 
    Which type of twin is created from two separate zygotes?
    • A. 

      Dizygotic

    • B. 

      Monozygotic

    • C. 

      Identical

    • D. 

      Cloned


  • 14. 
    A person whose genotype includes a gene that is not expressed in the phenotype is called:
    • A. 

      Infertile

    • B. 

      A carrier

    • C. 

      A dizygotic twin

    • D. 

      A mosaic


  • 15. 
    Research reported in The Relationship Code found that:
    • A. 

      Genes have a strong impact on every characteristic of a child

    • B. 

      The research help to explain the interaction of nature and nurture

    • C. 

      Family structure and parental style modify genetic influence on children

    • D. 

      All of the answers are correct


  • 16. 
    Examples of the interaction of genotype and phenotype can be easily identified in:
    • A. 

      Alcoholism

    • B. 

      Many mental illnesses

    • C. 

      Nearsightedness

    • D. 

      All of the above


  • 17. 
    Dr. Chan has diagnosed 8-year old Hsu with myopia.  He recommends that Hsu should spend more time playing outside in the sun.  Why would Dr. Chan make this recommendation?
    • A. 

      Dr. Chan recognizes the importance of the interaction of the environment on Hsu inherited visual genes.

    • B. 

      Dr. Chan does not want to prescribe glasses for Hsu.

    • C. 

      Dr. Chan thinks that Hsu needs more vitamin A to slow down the progression of myopia.

    • D. 

      There is no reason for Dr. Chan to make this recommendation.


  • 18. 
    Why is it important to be knowledgeable about chromosomal and genetic abnormalities?
    • A. 

      They provide insight into the complexities of nature and nurture

    • B. 

      The information helps reduce prejudices toward the abnormalities

    • C. 

      Knowing the origins of the abnormalities can help limit their effects

    • D. 

      All of the above


  • 19. 
    Eric has been identified as having cells with 45 chromosomes and others with 46 chromosomes.  This condition is called:
    • A. 

      Mosaic

    • B. 

      Trisomy-21

    • C. 

      Diabetic

    • D. 

      Klinefelter syndrome


  • 20. 
    Which of the following statements about individuals with Down syndrome is true?
    • A. 

      Very few have specific facial characteristics

    • B. 

      Every cell in their body contains 47 rather than 46 chromosomes

    • C. 

      Cognitive stimulation will not improve their ability to read and write

    • D. 

      Their life expectancy is shorter than that of other adults


  • 21. 
    Each of the following results from an atypical number of chromosomes, except:
    • A. 

      Tourette syndrome

    • B. 

      Turner syndrome

    • C. 

      Down syndrome

    • D. 

      Klinefelter syndrome


  • 22. 
    Which genetic disorder is sex-linked, appears on the X chromosome, and may result in mental retardation?
    • A. 

      Tay-Sachs

    • B. 

      Down syndrome

    • C. 

      Fragile X syndrome

    • D. 

      PKU


  • 23. 
    Carriers of the sickle-cell trait are:
    • A. 

      Less likely to die of malaria

    • B. 

      More likely to suffer of malaria

    • C. 

      More likely to be affected by fragile X syndrome

    • D. 

      Less likely to be affected by fragile X syndrome


  • 24. 
    According to the text, some historians believe that a disease was an underlying cause of the Russian revolution of 1917. What was this disease?
    • A. 

      Hemophilia

    • B. 

      Fragile X syndrome

    • C. 

      Cystic fibrosis

    • D. 

      Huntington's disease


  • 25. 
    Why does genetic testing and counseling produce uncertainty?
    • A. 

      News of a harmful gene that can produce a possible disorder generates new uncertainties

    • B. 

      Medical treatments have not yet been discovered for some of the disorders

    • C. 

      The interaction of genes and the environment makes development over the life span unpredictable

    • D. 

      All of the above


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