Why are neurons unable to undergo mitosis in adults?
A. Mature neurons lack a nucleus.
B. Neurons lack mitochondria.
C. Mature neurons lack Nissl bodies.
D. Mature neurons lack centrioles.
E. Mature neurons lack adequate supplies of cytoplasm for cell division.
D. Mature neurons lack centrioles.
You might also like to view...
Which of the following relationships is correct?
A. m = F/a B. F = m/a C. a = m/F D. none of the above
James made a New Years resolution to get healthy so started an exercise plan. Early in the process he noticed that he fatigued quickly. As he continued to exercise regularly, he noticed that it took longer to fatigue. What change explains the increased endurance?
What will be an ideal response?
Which region of the spinal cord has more spinal nerve pairs than the corresponding number of vertebrae?
A. Cranial B. Cervical C. Thoracic D. Lumbar
When does the placenta become sufficiently functional to continue the pregnancy?
A) after one week B) after one month C) after nine weeks D) after the first trimester E) after the second trimester