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Heredity and Conception

Quiz by Glenda Seward

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10 questions
Show answers
  • Q1
    Of the 46 chromosomes in a normal human cell, how many are contributed by the mother?
    none
    It depends on the gender of the child
    23
    all
    30s
  • Q2
    Which of the following most accurately describes what genes do?
    work together with lutein to influence development
    hardwire people for certain levels of certain traits.
    regulate the development of traits.
    determine the gender of the child
    30s
  • Q3
    What factor determines the sex of a child?
    the presence or absence of teratogens at the time of conception
    the age of the mother
    It depends on what time of the ovulation cycle conception occurs.
    the sex chromosome from the father
    30s
  • Q4
    If a child receives a dominant allele for 'tallness' from one parent and a recessive allele for 'shortness' from the other, what do we know?
    The child will tend to be tall.
    The child is likely to be born male.
    The child will be average in height.
    We cannot predict the potential height of the child based upon this information.
    30s
  • Q5
    Individuals with Down Syndrome:
    do not typically suffer adjustment problems
    have chromosomal damage on the 8th chromosome
    have deficits in cognitive functioning and motor development
    have few, if any, physical problems
    30s
  • Q6
    Children with PKU:
    have damage to the 21st chromosomes
    should be placed on a special diet as soon as possible
    cannot eat fruit or vegetables
    usually live for only a few weeks
    30s
  • Q7
    Which of the following individuals is MOST likely to have Tay-Sachs disease?
    a 5-year-old European American
    a 20-year-old Hispanic male
    a 4-year-old of Jewish descent
    a 10-year-old African American
    30s
  • Q8
    During amniocentesis:
    fluid is tested from the 'sac' containing the fetus
    the father's sperm are tested for genetic abnormalities
    a biopsy is taken from the pregnant mother's spine
    the mother's eggs are tested for genetic abnormalities
    30s
  • Q9
    The procedure that poses the LEAST risk to the fetus is:
    alpha-fetoprotein assay
    amniocentesis
    chorionic villi sampling
    ultrasound
    30s
  • Q10
    Which of the following twin pairs would physically resemble each other the most?
    monozygotic
    dizygotic males
    monozygotic, but only if female
    dizygotic of either sex
    30s

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