GCSE Biology - Cell cycles, Chromosomes & Mitosis #69

In order to survive and grow, organisms require a constant supply of new cells. In this video we explore how these cells are generated through the cell cycle, with a particular focus on mitosis. We will also look at the role chromosomes play and the different forms they take.
In this video, we'll look at:
- How new cells are generated by the cell cycle
- What mitosis is, and how it works
- The role of chromosomes, and the different forms they take

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has built specifically to make learning and revision as quick and easy as possible. The main features are:
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Amadeus & Tom

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There's also another approach to memorise the phases of mitosis which is the P.M.A.T strategy (prophase, metaphase, anaphase, telophase.) including Cytokinesis which is just the separation/division into daughter cells also when alienation/division takes place a nucleus is formed as well :)

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I think there is another step called interphase

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So you say humans have 23 pairs of chromosomes.. does that mean 23 pairs of chromosomes in every body cell?

[@Cognitoedu]

Hi Fly - almost. Sex cells like egg and sperm cells actually only have 23, and our red blood cells don't have any chromosomes.

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what is 22 pairs is autosomes..

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Commented

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Is this video 46 or 48 I'm quite confused since, the title says 4. Thanks!

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Heya - nearly all of them. Sex cells like egg and sperm cells only have 23, and red blood cells don't have any.

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Cognito does this mean then that when the sperm and egg join that the 23 in the sperm and the other 23 in the egg join to become 46?

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