Required practical 2 - Mitosis Flashcards
1
Q
Why is toluidine blue used?
A
Chromosomes are stained so are visible
2
Q
Why is the tissue macerated?
A
To separate the cells
3
Q
Why is the tissue squashed under a cover slip?
A
single layer of cells so light can pass through
4
Q
Why should the student take care not to squash the cells sideways?
A
to avoid damage to the cells
5
Q
Why are cells from the root tip used?
A
these are undergoing mitosis as plants grow at root and shoot tips
6
Q
Why calculate percentage of cells undergoing mitosis rather than counting number of cells?
A
Different tissues may have different numbers of cells so results are more comparable
