Meiosis lab Activity

• The Fungus Sordaria fimicola has 2 color possibilities: dark or light brown.

• The fungus creates haploid cells through meiosis (just like a human), but when a light colored fungus mates with a dark colored fungus you can see that crossing over took place.

Sordaria fimicola Meiosis Lab Images

Gr 10 Biology

How to find gametes that have completed crossing over:

• look for the following patterns:

• Count how many sets of gametes show crossing over of the dark and light colored fungi.

PRACTICE: Highly magnified

FIRST VIEW: 100x

100x

Conclusions:

1. Approximately how often do dark and light fungi cross over?