By ignoring a checkpoint in the cell cycle, a cancer cell may
A. align chromosomes on the equator of the cell during metaphase.
B. divide before its DNA is completely replicated.
C. pull chromosomes apart during anaphase.
D. divide after mutations are fixed.
E. condense its chromosomes before mitosis.
B. divide before its DNA is completely replicated.
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The __________ consists of skull bones, a vertebral
column (backbone), and a rib cage. Fill in the blank(s) with the appropriate word(s).
Within each muscle fiber are hundreds or thousands of cylindrical structures that runs the entire length of the muscle fiber. These are called
a. myofibrils
b. sarcolemmas
c. myofilaments
d. sarcomeres
Which of the following would not result from a C. difficile infection?
A) hemolytic uremic syndrome B) mild diarrhea C) severe abdominal pain, fever, nausea, and abundant watery diarrhea that may progress to dysentery D) toxic megacolon E) pseudomembranous colitis
Which of the following contribute(s) to the spread of Legionella pneumophila in domestic water systems?
a. biofilm formation b. heat resistance c. resistance to chlorine d. all of the above