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Q1 / 5
Inheritance
Higher
2 marks
What is codominance? Give an example.
A
Both alleles fully expressed in heterozygote; e.g. IAIB → blood type AB (A and B antigens both present)
B
One allele is dominant and masks the other
C
Neither allele is expressed in the heterozygote
D
Codominance only applies to coat colour in cats
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