With the help of a new litter of Oriental cats, Alison Woollard illustrates the Mendelian mechanism of inheritance. Alison asks what the offspring of two short-haired cats will look like. In order to produce this mixed litter of short and long hair we learn that the adult cats must have had two different coat-length alleles, demonstrated using a mixture of coloured balls. Like the blue balls, the parent cats have short hair because it is the dominant allele.

Keywords: Mendelian inheritance, phenotype, genotype

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10 years ago
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Thank you for sharing your resource. This resource has been recommended by the TES Resource Team for its relevance to the 2014 National Curriculum.

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