A common form of muscular dystrophy is an X-linked disorder that causes progressive weakening of skeletal muscles. It is usually passed from mother to
son. A mother who is a carrier for this disorder (XX') marries a man who is
normal (XY). Which of the following is true statement about the couple's
sons?

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

Which label correctly identifies what x represents in the concept map?