Since we've got the topic of genetics going, can we please talk about how co-dominance is misused by herpers?
Direct from wikipedia, until I get the MCAT and undergrad bio books out to quote to make a thread about this:
The typical example for co-dominance is blood type in humans. There are three alleles for blood type: A,B, and I.Incomplete dominance occurs when the phenotype of the heterozygous genotype is an intermediate of the phenotypes of the homozygous genotypes.
Co-dominance occurs when the contributions of both alleles are visible in the phenotype
I is recessive, and causes O blood type (don't ask me why they don't just call the allele "O", cuz I don't know). A and B are dominant to I, but co-dominant to each other.
AI = A blood type
BI = B blood type
AA = A blood type
BB = B blood type
II = O blood type
However:
AB = AB blood type. This is a correct example of co-dominance.
The pastel trait, often given as an example of "co-dominance", is in fact an example of INCOMPLETE DOMINANCE.
Thank you.
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