Onion Root lab and Webquest

	Interphase	Prophase	Metaphase	Anaphase	Telophase	Total
number of cells	20	10	3	2	1	36
percent of cells	56%	28%	8%	6%	2%	100%

1.  What percent of cells were in interphase? 56% percent of cells.

2. What percent were in mitosis? 44% of these onion roots are in mitosis.

3. Which phase of mitosis takes the longest?  As you can infer from the graph, interphase will take the longest.

4. During which stage is the nucleolus visible as a dark spot? If you observe in the microscope, Interphase can be recognized because the nuclear membrane is still connected, the chromatin has not yet condensed, and you can't see any of the chromosomes yet.

5. How can you recognize a cell in metaphase? The chromosomes are in there condensed state and are aligned in the center of the cell

I also posted this picture and our graph results because I want to explain in a broader view of what the whole mitosis phase looks like.

picture found at:
http://www2.mbusd.org/staff/pware/images/CellCycle.jpg