Totipotent means that the cells can differentiate into any type of cell in the body. Which of the following cells are not totipotent cells_____?

A. Fertilized egg cells.
B. Plant leaf cells.
C. Epithelium stem cells.
D. Embryonic cells at 8-cell stage.

Which of the following about apoptosis is not true________?

A. Is a sort of "cellular self-destruction" that takes place in normal tissues.
B. Is accompanied by random DNA degradation.
C. Is characterized by nuclear fragmentation and cellular breakdown into apoptotic vesicles. And does not induce inflammation.
D. Differs from necrosis because necrosis occurs when cell is injured.

Programmed cell death (PCD)_______

A. Occurs by a morphologically defined process known as apoptosis.
B. Is the type of cell death that occurs naturally as part of the normal development.
C. Is a process regulated at the genetic level.
D. All of the above

Necrosis ______

A. Occurs when cell is injured.
B. Characterized by DNA degraded into about 200bp fragment.
C. Is a genetically controlled process.
D. May be mediated by FAS signal pathway.