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B2 5.6 Inherited Conditions in Humans

B2 5.6 Inherited Conditions in Humans

Author: Gemma Boyson

15. How are human genetic disorders inherited?

16. How can we use a genetic diagram to predict whether a child will inherit a genetic disorder?

17. Can you construct a genetic diagram to make predictions about the likelihood of inheriting a genetic disorder.

This tutorial takes you through the basics for B2 5.6 for the AQA GCSE Additional Science and Biology courses.

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GCSE Science for AQA, B2. Genetic disorders, Polydactyly.

Cystic Fibrosis

AQA GCSE Biology unit 2, inheritance of cystic fibrosis.

Optional Video: Bozeman Science - Punnett Squares (again)

This video was on the last tutorial, but I've put it in here if you need some reminding.

Paul Andersen introduces the Punnett Square as a a powerful tool in genetic analysis. He tries to address major misconceptions that students have when use a Punnett Square. He gives a number of examples of monohybrid crosses and one example of a dihybrid cross. The square is a simple tool that uses the outcome of meiosis to determine possible offspring in a cross.

Source: Bozeman Science