lmao okay... doode.. youre wrong. Here we go. Just because the Sharingan is shown OVER not having the sharingan does not mean its dominant. A dominant trait is a trait that blocks off the other recessive gene, meaning the phenotype for the dominant gene is expressed. Having sharingan/not having sharingan = same as having brown hair vs blonde hair (because they are both on the same allele and share the same loci). For example, albinism is recessive. And coincidently, the eyes of an albino are red. And just because the albino's eyes are shown red does not mean that the red is shown OVER regular eyes . But for the red eye to show (or more correctly to be not dominated by the dominant gene), the albino would need two recessive genes. Now let me quote you "Because the Sharingan allele is expressed over regular eyes, the sharingan allele is dominant". That is proven to be entirely NOT true. And another quote "Just because the majority of the Uchiha clan doesn't have the sharingan, that doesn't make the sharingan recessive for everyone in the population. You have to understand this basic principle. It's on an individual basis." Hey, if the sharingan is recessive for anyone, then its recessive for everyone cuz its the same gene.
However, one fact that we do not know is whether the Sharingan is recessive or dominant, but what i'm explaining is that just because the "sharingan is shown over the regular eyes" , it doesnt mean its dominant. And also, its more safe to assume that its recessive because of one reason : Only a chosen few have the sharingan.
Lastly, i know that even if its a dominant trait, it can still be more rare than the recessive ... just like i explained in my previous post about the dimples, but if nothing happened to the population, then there would always be a constant proportion of dominant over recessive in a 3:1 ratio (which is proven by the Hardy-Weinburg law - go look it up)
Originally posted by: hiten mitsurugi
A person with blue eyes would be dominant for the blue eye allele and recessive for the brown eye allele.
a person with brown eyes would be recessive for the blue eye allele and dominant for the brown eyes allele.
okay.. i read the bottom half of your response and i dont think you understand that genes are already set as either recessive or dominant. In real life, okay this is real life now: a brown eye pigment gene is dominant over nearly every other eye pigment gene. And a blue eye would be recessive. So it would be:
B = brown eye dominant gene
b= blue eye recessive gene
So a guy with brown eyes can either be homogenous for brown eyes (BB) or heterogenous (Bb) to have the brown eye gene dominate over the blue eye gene. And a girl with blue eyes can only be homogenous for blue eyes (bb) or else the dominant gene (B) will dominate over the blue gene. And that is how dominant over recessive genes work.
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