Chapter 18: Genes and inheritance

Biology

GCSE

Edexcel

7m 47s

Why are some diseases inherited and how can we determine the probability that a diseases or trait is passed onto offspring? This tutorial provides you with all you need to know about chromosomes, homozygous, heterozygous and punnet squares.

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Tutors:

Jonathan Kingsley

Iona Denniston

Used by British and International schools around the world

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