GCSE Biology Revision “Family Trees”

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In this video, we look at family trees. I show you how to interpret a family tree and we look at some of the most common exam questions using the family trees for cystic fibrosis and polydactyly.

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Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
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