Chapter 7 Quiz

Instructions
Take the chapter quiz.

This assessment is worth 10 points.

  1. Traits that have both inherited and environmental causes are termed   (1 point)

    a.  
    b.  
    c.  
    d.  

  2. An example of a trait that is continuously varying is:   (1 point)

    a.  
    b.  
    c.  
    d.  

  3. Polygenic traits are the result of the interaction of a number of gene loci. The pattern of genetic transmission typical of a complex trait is:   (1 point)

    a.  
    b.  
    c.  
    d.  

  4. The empiric risk to a family member of an affected individual developing a disorder caused by a multifactorial trait:   (1 point)

    a.  
    b.  
    c.  
    d.  

  5. The empiric risk of recurrence for cleft lip is higher in families with an affected member. This is characteristic of a __________ disorders.   (1 point)

    a.  
    b.  
    c.  
    d.  

  6. A likely candidate gene for obesity and possibly coronary artery disease encodes:   (1 point)

    a.  
    b.  
    c.  
    d.  

  7. A brother and sister share ___ percent of their genes.   (1 point)

    a.  
    b.  
    c.  
    d.  

  8. The proportion of shared genes (correlation coefficient) between a grandparent and grandchild is:   (1 point)

    a.  
    b.  
    c.  
    d.  

  9. Dizygotic (DZ) twins:   (1 point)

    a.  
    b.  
    c.  
    d.  

  10. Martha and George have a child with cleft lip. George's sister Anna and her husband Fred are expecting a child. The risk that their child will have a cleft lip is:   (1 point)

    a.  
    b.  
    c.  
    d.  



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