Question 1
1) Skin cells

have terminally differentiated.

become senescent quickly.

continually replicate.

become quiescent quickly.
.
Question 2
1) Which cell type undergoes terminal differentiation?

hair cells

heart cells

stem cells

epithelial cells

Question 3
1) DNA replicates in the

cell membrane.

endoplasmic reticulum.

cytoplasm.

nucleus.

Question 4
1) Which of the following might affect gene expression in a complex organism?

the ability to reverse terminal differentiation

the number of chromosomes being copied

the types of cells near the site

the amount of time a cell takes to replicate DNA

Question 5
1 What replicates during mitosis?

organelles

proteins

cytoplasm

cells