Fragile-X syndrome usually occurs as a result of
a. paternal age.
b. maternal age.
c. unusually high codon repeats on the X chromosome.
d. the inability to metabolize phenylalanine.
Question 2
Elizabeth's grandmother recently underwent a hip replacement operation. Because she took this course, Elizabeth is able to tell her grandmother that she
a. will need to be very careful, because the removal of her joint receptors means that she will not know the position of her hip without looking.
b. will have to relearn how to walk, as the operation removes joint receptors responsible for managing muscle stretch.
c. will still know the position of her hip without looking, even though her operation will remove all of her joint receptors.
d. should prepare to deal with phantom pain from the joint receptors that have been removed.
Cushing’s syndrome. A photograph of a woman with the characteristic facial features of Cushing’s syn
Karyotype for Down's Syndrome
Polycystic ovary syndrome.
) Random assortment of maternal (blue) and paternal (purple) chromosomes at metaphase
In Marfan syndrome, defective connective tissue causes the base of the aorta to enlarge, and potenti
The karyotype of Turner syndrome.