Time for HL students to study Genetics in a little more detail – Topic 10.

With complicated processes such as Mitosis and Meiosis the key to learning is repetition – you will benefit from constant re-vising of work previously covered. In this section (Topic 10.1) we are firstly going to remind ourselves of mitosis and meiosis using the video below

Then we will look at the curriculum statements for this topic and will identify what additional information we need to add to our existing knowledge. We will then look at

and see if we can find out the additional content required.

When we look at the causes of variation in gametes, we will obviously consider crossing over. In addition to this though we need to consider how Mendels law of independent assortment and meiosis conspire to cause further variation in gametes. THIS animation from McGraw Hill explains quite nicely what is going on. While watching this presentation ask yourself though could the animation be improved?

This section is also covered very well on pages 265 to 271 of your text book.


So how is Biology going to change the world? Genetic engineering and Biotechnology, Topic 4.4

Now I know that I keep saying this in class but I firmly believe that Biotechnology is going to have a profound (hopefully positive) impact upon our world. One possible future development could be the advent of personalised medicine. Want to know more then check out the TED talk below from Nina Tandon

In this section we used THIS Slideshare from I-biology.net to investigate the curriculum aims for this section of the syllabus, make sure that you revisit any sections that you are not sure about on the Slideshare and your text books.


We have now finished all of topic 4 which means it is time for a topic test. You will write the topic test the first week back after the holiday. Over the next few days I hope to post some practice questions for you to work on. Remember, to access the top levels in he test you will need to prepare thoroughly!

On that note I came across the excellent video below which uses beads to demonstrate the process of Mitosis and Meiosis.