IB Biology (2009) - Topic 4.2 - Meiosis PPT

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1.38 MB   |   23 pages

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This powerpoint presentation covers Topic 4.2 (Meiosis) in the IB Biology curriculum. Each slide is labelled with the specific learning
objective and animation/video links are provided in the slide notes.

The slides are formatted to print well for handouts or revision and I can provide a pdf version upon request.

As always, please let me know if you have any suggestions for improvements. These are always a work in progress!


**IB Biology Learning Objectives

4.2.1 – State that meiosis is a reduction division of a diploid nucleus to form haploid nuclei.

4.2.2 – Define homologous chromosomes.

4.2.3 – Outline the process of meiosis, including paring of homologous chromosomes and crossing over, followed by two divisions, which results in four haploid cells.

4.2.4 – Explain that non-disjunction can lead to changes in chromosome number, illustrated by reference to Down syndrome (trisomy 21).

4.2.5 – State that, in karyotyping, chromosomes are arranged in pairs according to their size and structure.

4.2.6 – State that karyotyping is performed using cells collected by chorionic villus sampling or amniocentesis, for pre-natal diagnosis of chromosome abnormalities.

4.2.7 – Analyze a human karyotype to determine gender and whether non-disjunction has occurred.
Total Pages
23
Answer Key
N/A
Teaching Duration
3 hours

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IB Biology (2009) - Topic 4.2 - Meiosis PPT
IB Biology (2009) - Topic 4.2 - Meiosis PPT
IB Biology (2009) - Topic 4.2 - Meiosis PPT
IB Biology (2009) - Topic 4.2 - Meiosis PPT
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