A-LevelBiologyInherited changeMay/June 2018Paper 4 Q48 Marks
4 Domestic goats, Capra hircus, show a wide range of coat patterns and colours. One gene involved in coat colour and pattern has multiple alleles. Four of these alleles are: • A, the allele for white, is dominant to all others • Ab, the allele for badgerface (stripes on face) and Aº, the allele for grey, are codominant • a, the allele for black, is recessive to all others.
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