Biology Practicals Class 12
Meiosis: The Reductional Division of Cells
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- This biology experiment introduces the learner to the process of meiosis.
- Learner will understand the purpose behind the reductional division of cells in a lucid manner.
- Comprehensive understanding of various stages in meiosis is covered in this biology simulation.
- This experiment helps the learner to distinguish between the two major phases of meiosis, i.e., meiosis 1 and meiosis 2.
- This biology experiment provides learners with an opportunity to know about microscopic techniques.
- In this biology simulation, learners will understand different magnifications to observe various stages of meiosis.
Meiosis is a specialised reductional cell division. In meiosis, the number of chromosomes is reduced to half, producing haploid daughter cells from specialised diploid cells called gametes.
The offspring of sexually reproducing organisms include the fusion of two gametes, each gamete with a complete haploid set of chromosomes. Meiosis ensures the production of the haploid daughter cell phase in the sexually reproducing organisms, whereas fertilisation restores the diploid phase.
There are 2 phases of meiosis, namely, meiosis 1 and meiosis 2.
- Meiosis 1 begins after the parental chromosomes are replicated to produce identical sister chromatids at the S phase.
- Meiosis 2 immediately begins after the cytokinesis of the meiosis 1, usually before the chromosomes are fully elongated.
Meiosis is a type of cell division that helps conserve specific chromosome numbers in each species. It helps in genetic variability from one generation to the next and from one individual to another.
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Requirements for this Science Experiment
⦁ Permanent slides ⦁ Compound microscope