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A gene determines hair colour. One allele codes for brown hair (B) and another for blonde hair (b). If a person inherits alleles Bb, what usually determines their hair colour?.
- A.Both alleles are expressed equally, resulting in a blended colour.
- B.The 'b' allele is dominant, so they will have blonde hair.
- C.The 'B' allele is dominant, so they will have brown hair.
- D.Neither allele is expressed, resulting in grey hair.
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