Problem:

Question 1: What is the difference between pluripotent and totipotent?

1. pluripotent cells can make parts of the embryo, totipotent cells can make the embryo and placenta
2. totipotent is only one cell, more than one cells are pluripotent
3. totipotent cells are not differentiated, pluripotent cells are
4. totipotent cells are pleiotropic, pluripotent cells are not
5. pluripotent cells come from adults, totipotent cells come from fetuses

Question 2: Apoptosis is

1. rapid cell division.
2. caused by proto-oncogenes.
3. the change in shape of a cell when it becomes cancerous.
4. programmed cell death.
5. None of these

Please select correct answer and also provide explaination.