Are hazel eyes dominant or recessive?
Guest18236466 A) Dominant and recessive relationships are all relative and dependent on the level at which you’re measuring phenotype. B) Dominant and recessive relationships are not the only relationships two alleles may have. C) I’m fairly certain that people don’t actually have a handle on the allele causing hazel eyes or how it works. D) There are many many genes which interact to produce even “simple” phenotypes. There is a whole range of “hazel” colours, colours of blue, and colours of brown, and because not all eye colours are discreetly a single, simple colour, it’s very hard for people to understand them. Blue and brown are relatively easy categories with a relatively simple phenotypic relationship. Because some eye colours fall, by nature, into the category of quantitative genetics, they don’t necessarily follow simple Mendelian inheritance patterns anymore. As well, environmental effects or other genetic interactions can determine the penetrance or expressivity of any trait.
