Punnett squares | DNA, genes and inheritance | meriSTEM

This video is part of the Year 11 and 12 genetics series - DNA, Genes and Inheritance bit.ly/meriSTE....
In this video you will learn how to use the mendelian genetics tool, the punnet to predict the genotype (homozygote and heterozygote) and phenotype ratios of F1 generation and F2 (1:2:1) generation offspring. A real-life example of of a cross between two cystic fibrosis CFTR carriers is explained and used to demonstrate that there is 25% chance progeny being afflicted and 50% chance that progeny will carry the faulty gene.
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This video is part of meriSTEM Australian senior science educational resources (CC BY-NC-SA 4.0). Email the team ([e-mail]) for further information, course access and curriculum links.