What occurs during the prophase stage of mitosis?   a.Chromosomes pack tightly and become attached to a newly forming spindle   b.Chromosomes align midway between the spindle poles   c.Chromosomes arrive at opposite spindle poles and become enclosed by a new nuclear envelope   d.Sister chromatids separate and move toward opposite spindle poles

In the example below, how many chromosomes are in each cell in prophase and anaphase? a. 8and8 b. 4and4 c. 4and8 d. 8and4 e. 2and8

What occurs during the S phase of the cell cycle?   a. The cytoskeleton is dismantled.   b. The cell accumulates the building blocks of chromosomal DNA.   c. Chromosomes are duplicated.

Identify the phase in mitosis in which the chromatin condenses into chromosomes. Select one: a. Telophase b. Anaphase c. Prophase d. Metaphase

How does MPF trigger M phase of the cell cycle?   A. MPF phosphorylates proteins that triggers the activation of M phase   B. MPF has a regulatory role in breakdown of the nuclear envelope during M phase   C. MPF is a dimer subunit that is turned on during S phase to aid with chromosome replication   D. MPF Cdk subunits regulate M phase

During this stage, the microtubules are shortened causing separation of sister chromatids. a. Prophase O b. Metaphase c. Anaphase d. Telophase

A cell in metaphase of mitosis has 20 chromosomes. Therefore, this cell has 40 chromatids. The same cell will have how many chromosomes at anaphase of mitosis?  A. 10 B. 40 C. 60 D. 20

The drug colchicine prevents the spindles microtubules from forming or growing. What would happen in mitosis to a cell that was given colchicine throughout mitosis? A. The chromosomes would not condense  B. The nuclear envelope would not dissolve  C. The chromosomes would not line up for metaphase D. The chromosomes would line up for metaphase but would not pull apart in anaphase.