A 29 year-old Caucasian male requests treatment for infertility. Routine patient reveals frequent colds and sinus infections; Examination of semen sample shows large numbers of non-motile spermatozoa. Chest X-rays reveal situs including right-sided location of the heart.
211.    the most likely diagnosis is
(A)    Down syndrome
(B)    Cyptorchim
(C)    Kartagener’s syndrome
(D)    Bronchial pneumonia
(E)    Klinefelter’s syndrome

A pregnant 39- years-old female has amniocentesis carried out because of concern about possible birth defect associated with pregnancy in older women. Strong reactivity with an antibody to glial fibrillary acidic protein (GFAP) is detected.
205.    GFAP is
(A)    found in neurons of the central nervous system
(B)    a glycoprotein containing numerous sulfated side chains
(C)    a constituent of […]

203.    All of the following processes directly involve the binding/or hydrolysis of ATP EXCEPT
(A)    assembly of actin monomers into microfilaments
(B)    elongation of microtubules via addition of tubulin subunits
(C)    movement of cilia
(D)    transport of vesicles along axonal microtubules
(E)    dissociation of myosin cross bridges from thin filaments in cardiac muscles

Match the appropriate lettered protein with the structure of function indicated by the numbered items that follow.
(A)    Desmin
(B)    Ankyrin
(C)    Profilin
(D)    Dynein
(E)    Fragmin
(F)    Actin
(G)    ? –actinin
(H)    Myosin
(I)    Keratin
(J)    Kinesin
(K)    Integrin
(L)    Tubulin
(M)    Fibronectin
(N)    Spectrin

Items 183-186
Examine the electron micrograph of a longitudinal section of skeletal muscle in Tissue-culture microscope 3.1 below and then match the lettered structure on the micrograph with the most appropriate description of this structure in the items below.
183.      This structure contains an enzyme whose ability to release ADP and Pi  is the rate limiting […]