NUR 339 Exam 19

NUR 339 Exam 19
1. What are the first major phases of the cell cycle?
Answer
G1
cell prepares to make DNA
S phase
DNA synthesis actually takes place G2
prepares for mitosis
M phase
mitosis occurs 0
resting phase
2. In what phase of the cell cycle does mutation typically occur?
Answer
S phase
3. What are the stages ofthe cell cycle controlled by?
Answer
cyclins(a type of protein), and their inhibitors
4. What can defectsin the cycle cycle contribute to?
Answer
the development of cancer
5. Characteristics of benign neoplasms
Answer
composed of well differentiated cellsthat resemble cells of tissues of organ
slow growth rate
may become encapsulated usually do not cause death