1. which of the following is true about the cells in a multicellular organism? (1 point)
-the cells contain different genes and therefore express different genes.
-the cells contain different genes, so they express only the genes they have in common.
-the cells contain the same genes but do not express the same genes.
-the cells contain the same genes and express the same genes.

2. if a scientist changes the path of differentiation in some cells by adding a growth factor, what process is involved? (1 point)
-fertilization
-induction
-cytoplasmic localization
-apoptosis

3. which of the following shows the correct order of extent of differentiation? (1 point)
-multipotent, totipotent, pluripotent
-totipotent, multipotent, pluripotent
-pluripotent, totipotent, multipotent
-totipotent, pluripotent, multipotent

4. which of the following is the function of adult stem cells? (1 point)
-provide a safeguard in case a limb transplant is needed
-provide a reservoir of cells for making gametes
-provide a source of cells for the body to replace certain types of cells that die
-provide a backup set of cells that can be used to grow replacement cells in culture