Match the mode of inheritance with its description. (p. 557) (1) autosomal recessive (2)

Chapter 0, Problem 26

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Match the mode of inheritance with its description. (p. 557) (1) autosomal recessive (2) autosomal dominant (3) X-linked recessive Outcom es 13.2, 13.6, 20.3, 20.4 1. What symptoms may appear if a newborns ductus arteriosus fails to close? Outcom es 14.9, 20.2 2. Why can twins resulting from a single fertilized egg exchange blood or receive organ transplants from each other without rejection, while twins resulting from two fertilized eggs sometimes cannot? Outcom es 20.2, 20.3, 20.5 3. What kinds of studies and information are required to determine whether a mans exposure to a potential teratogen can cause birth defects years later? How would such analysis differ if a woman were exposed? Outcom es 20.3, 20.4 4. What technology would enable a fetus born in the fourth month to survive in a laboratory setting? (This is not yet possible.) Outcom e 20.5 5. Bob and Joan know from a blood test that they are each heterozygous (carriers) for the autosomal recessive gene that causes sickle cell disease. If their first three children are healthy, what is the probability that their fourth child will have the disease? A. Inherited by male from carrier mothers B. Inherited from one affected parent C. Inherited from two carrier (unaffected) parents