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Demonstration of Mitosis and Meisosis

Biology

PRACTICAL ACTIVITIES TO DEMONSTRATE CONTINUOUS VARIATIONS

PRACTICAL ACTIVITIES TO DEMONSTRATE CONTINUOUS VARIATIONS Height of students Students should work in pairs, use chalk and metre rule to mark level of top of head onto the wall. Or door as one student stands straight without shoes, next to the wall or door. The height for each student is recorded on chalk board. The frequency distribution of height is recording as the height is grouped into various classes. A histogram to represent frequency against height is drawn. The normal bell shaped curve is observed.   Discontinuous variations – ability to roll tongue The number of students who can roll their tongue is recorded as well as the number of non-tongue rollers. The ratio of tongue-rollers to non-tongue rollers is worked out. Gene for the ability to roll the tongue is dominant, therefore is expected more tongue rollers.   Demonstration of Mitosis and Meisosis Mitosis Plasticene is used to represent… Read More »PRACTICAL ACTIVITIES TO DEMONSTRATE CONTINUOUS VARIATIONS

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