Uploaded April 2025 | Updated September 2026, 2 days ago
In this video, we look at the Hardy Weinberg Principle. First we explore what is meant by a population, a gene pool and allele frequency. We then look at the Hardy Weinberg Principle and the five conditions that must be met for this to apply. We then explore the two equations that underpin the Hardy Weinberg Principle before I show you how to apply these equations to answer a typical question.
Image credits:
Female mountain gorilla and baby
commons.wikimedia.org/wiki/File:Mountain_gorilla_(Gorilla_beringei_beringei)_female_with_baby.jpg
Charles J. Sharp, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
In this video, we look at the Hardy Weinberg Principle. First we explore what is meant by a population, a gene pool and allele frequency. We then look at the Hardy Weinberg Principle and the five conditions that must be met for this to apply. We then explore the two equations that underpin the Hardy Weinberg Principle before I show you how to apply these equations to answer a typical question.
Image credits:
Female mountain gorilla and baby
commons.wikimedia.org/wiki/File:Mountain_gorilla_(Gorilla_beringei_beringei)_female_with_baby.jpg
Charles J. Sharp, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
![GCSE Biology Revision Digestive Enzymes
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In this video, we look at the specific enzymes found in the digestive system. We start by looking at the lock and key theory which explains why enzymes are specific. We then look at each of the three enzymes in digestion.
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Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought
Artist: http://incompetech.com/
Image credits:
Human digestive system Lozzaaa [Public domain], via Wikimedia Commons GCSE Biology Revision Digestive Enzymes](https://i.ytimg.com/vi/ypHpbHfDJsA/mqdefault.jpg)
