Uploaded August 2023 | Updated September 2026, 1 day ago

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You can find all my A Level Biology videos fully indexed at freesciencelessons.co.uk/a-level-revision-videos/a-level-biology

In this video, we look at genetic biodiversity. First we explore how pure bred organisms have a lower level of genetic biodiversity compared to the wild-type. We then look at how to calculate genetic biodiversity.

Image credits:

Boxer 1
commons.wikimedia.org/wiki/File:Boxer_(dog)_,_Iran_07.jpg
Mostafameraji, CC0, via Wikimedia Commons

Boxer 2
commons.wikimedia.org/wiki/File:A_front_view_of_the_face_of_the_boxer_dog_breed.jpg
Martin Vorel, Public Domain, via Wikimedia Commons

Boxer 3
commons.wikimedia.org/wiki/File:Boxer_Paco..JPG
JacWehrlin, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog 1
commons.wikimedia.org/wiki/File:Canis_lupus_familiaris_Perro_Mestizo.JPG
Petruss, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Dog 2
commons.wikimedia.org/wiki/File:Carnivora_-_Canis_lupus_familiaris_-_35.jpg
Emőke Dénes, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog 3
commons.wikimedia.org/wiki/File:Carnivora_-_Canis_lupus_familiaris_-_38.jpg
Emőke Dénes, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog 4
commons.wikimedia.org/wiki/File:20110425_German_Shepherd_Dog_8505.jpg
Jakub Hałun, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog 5
commons.wikimedia.org/wiki/File:Domestic_Dog_pic_1.jpg
Chidex02, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog 6
commons.wikimedia.org/wiki/File:Heterochromia_dog,_Struga.jpg
Liridon, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Mongrel dog
commons.wikimedia.org/wiki/File:Stray_dog_1.jpg
Mhmshabeer, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons