31. Human gametes contain? 

28.  Consider the following representation of four chromatids during prophase.  The paternal homologue is in upper case.  The maternal homologue is in lower case.    A B C D E F G A B C D E F G a b c d e f g a b c d e f g   During Anaphase I of Meiosis, how will the above chromosomes separate to the first 2 daughter cells?

56. In which of the following types of cells would you expect to see a barr-body as a result of X-inactivation? 

7. Which of the following could you NOT determine from looking at a Karyotype? 

57. Down Syndrome is a trisomy (aneuploidy) condition of the 21st chromosome.  Which of the following correctly illustrates this condition? 

52. Color blindness is an X-linked recessive trait. A color-blind woman mates with a male with normal color vision. What % of their sons will be color blind? 

Which of the following is characterized by the excessive production of the heavy chain portion of the antibody subunit?

Which of the following is most likely to affect prognosis in MDS?

What is characteristic morphology for Sézary cells?

Which of the following immunoglobulins are associated with heavy chain disease?