3.15, 3.16 Flashcards
Lucas, Joel
1
Q
give me the calculation of mitotic idex
A
mitotic index=cells in mitosis/total number of cells
2
Q
Give me the definition of mitotic idex.
A
Miotic index is the ratio between the number of cells in a tissue sample that are in mitosis and the total number of cells in the sample.
3
Q
root tip squash practical.
Name 3 apparatus each student needs.
A
Microscope Water bath at 60 °C Hydrochloric acid, 1 M, 10-25 cm3 per working group (Note 4) Scissors Watch glass (or small dish) Beaker, 100 cm3, 2 Scalpel Mounted needle Microscope slide Coverslip Paper towels
4
Q
Name 1 safety precaution.
A
gloves
safety goggles
5
Q
Which stain should be used?
A
Ethano-orcein stain
6
Q
How many cm of root tip should you cut off?
A
1 to 2cm
7
Q
How much hydrochloric acid should you heat up to 60 degrees?
A
10-25 cm3
8
Q
How long should you wash the root tip in cold water for?
A
4 to 5 minutes
