Heredity and Conception
Quiz by Glenda Seward
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10 questions
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- Q1Of the 46 chromosomes in a normal human cell, how many are contributed by the mother?noneIt depends on the gender of the child23all30s
- Q2Which of the following most accurately describes what genes do?work together with lutein to influence developmenthardwire people for certain levels of certain traits.regulate the development of traits.determine the gender of the child30s
- Q3What factor determines the sex of a child?the presence or absence of teratogens at the time of conceptionthe age of the motherIt depends on what time of the ovulation cycle conception occurs.the sex chromosome from the father30s
- Q4If 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
- Q5Individuals with Down Syndrome:do not typically suffer adjustment problemshave chromosomal damage on the 8th chromosomehave deficits in cognitive functioning and motor developmenthave few, if any, physical problems30s
- Q6Children with PKU:have damage to the 21st chromosomesshould be placed on a special diet as soon as possiblecannot eat fruit or vegetablesusually live for only a few weeks30s
- Q7Which of the following individuals is MOST likely to have Tay-Sachs disease?a 5-year-old European Americana 20-year-old Hispanic malea 4-year-old of Jewish descenta 10-year-old African American30s
- Q8During amniocentesis:fluid is tested from the 'sac' containing the fetusthe father's sperm are tested for genetic abnormalitiesa biopsy is taken from the pregnant mother's spinethe mother's eggs are tested for genetic abnormalities30s
- Q9The procedure that poses the LEAST risk to the fetus is:alpha-fetoprotein assayamniocentesischorionic villi samplingultrasound30s
- Q10Which of the following twin pairs would physically resemble each other the most?monozygoticdizygotic malesmonozygotic, but only if femaledizygotic of either sex30s