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In this video, we look at the causes of variation in a population. We then look at an example where a mutation caused a rapid change in the phenotype of a population.
Image credits:
Bill Russell ”
Pete Souza [Public domain], via Wikimedia Commons”
Portrait_of_a_Persian_lady_in_Iran,_10-08-2006 By Hamed Saber from Tehran, Iran – Persian Beauty, CC BY 2.0,
Red haired siblings ”
By Dpulitzer (Own work) [CC BY-SA 3.0 ( via Wikimedia Commons”
Lalit_Narayan_Jha ”
By PawanJha91 (Own work) [CC BY-SA 4.0 ( via Wikimedia Commons”
1032px-FFヤロでの高橋一輝 ”
By 山崎秀太 (Own work) [CC BY-SA 4.0 ( via Wikimedia Commons”
Young blonde man ”
By User:Pja25 (Cropped from Image:Two blond males.jpg) [Public domain], via Wikimedia Commons”
Pink hydrangea ”
I, MJJR [CC BY 2.5 ( via Wikimedia Commons”
Blue hydrangea By Raul654, CC BY-SA 3.0,
Two cricketers By BeingFaridKhan – Own work, CC BY-SA 3.0,
Eight dogs By carterse – Eight is still enough dogs, CC BY-SA 2.0,
Rabbit By Ann Harrison, CC BY-SA 2.0,
People talking ”
By Mghali76 (Own work) [CC BY-SA 3.0 ( via Wikimedia Commons”
Music credit:
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (
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