1. Give a couple of examples (from the video or otherwise) of when mitosis may be happening.
2. Inside each cell there’s a _________________ that stores your DNA.
3. In your body cells, or somatic cells, you have ____ chromosomes grouped into ____ pairs.
4. Cells with 46 chromosomes are called _________________ cells because they have two sets each.
5. Which cells in your body are haploid? ______________________ What process produces those cells?
________________
6. Interphase –
a. During interphase, the DNA is loosely coiled and called ______________________.
b. What does a cell do during interphase to prepare for cell division?
7. Prophase –
a. The chromatin condenses to form thick stands of ________ wrapped around
_________________ – these are chromosomes.
b. Label the diagram at right:
c. While the chromosomes are forming, the nuclear __________________ disintegrates.
d. As the centrosomes move toward opposite ends of the cell, they extend protein ropes
called ________________________.
8. Metaphase –
a. The chromosomes attach to the microtubules at their __________________________.
b. The chromosomes line up down the ______________ of the cell.
9. Biolography –
a. Who first observed mitosis?
b. Why did he call it mitosis?
c. A student at MIT studied the protein _______________.
10. Anaphase – What happens during anaphase?
11. Telophase –
a. The ____________________ membrane reforms, and nucleoli form within them.
b. The chromosomes relax back into ______________________.
12. Cytokinesis –
a. A little crease forms between the cells, marking the beginning of the final split, called
____________________.
b. The two nuclei move apart from each other, and the cells separate during
___________________________.
c. These clones are called the _____________________ cells