Both my parents families had hazel-eyed people in them, so the genes are obviously there, but I've never understood what the chances are that it would show up. Of their four children, three have blue eyes and one has hazel/green eyes. It's interesting - in my family, both my parents have blue eyes. Of course, it will also depend on who they marry. It will be interesting to see if my sons retain the allele for green eyes and pass them on to their children or even have held on to the blue from my mom and pass blue eyes on. My husband has brown eyes and mine, of course, are green.
My eyes are green and my sister's are brown. He/she doesn't even have the same color eyes as me or his/her mom!" A lot of people do not understand genetics and how a recessive gene can come down from a grandparent and the child could have totally different eye color than their parents. I have heard people say, "That can't possibly be my child. Does this mean my parents both passed on the recessive gene to us (homozygous)and no dominant gene was passed on whatsoever, since green and blue eyes are recessive traits? Oh, and what if you have dark blue eyes is that recessive or dominant? I am one of seven children and all of us have green eyes except my little brother has blue eyes. So I'm 13 and my parents both have green eyes, but I'm not sure about our grandparents. Well, my father and I have brown eyes and my biological mother and brother have blue. It would appear that polydactyly is a simple autosomal dominant trait with variable expression and a cat needs only one copy of the gene to express it.What if both parents are left handed and their offspring is right handed? Selection for easily dyeable white fleeces began early in sheep domestication, and as white wool is a dominant trait it spread quickly.
Lentigines is inherited as an autosomal dominant trait.Ī male homozygous for a sex-linked recessive trait crossed to a female with the dominant one gives, in the F1 generation, daughters with the recessive trait and heterozygous sons with the corresponding dominant trait.Īlthough the mechanisms of inheritance are not clear, psoriasis, like atopic dermatitis, has been thought to be inherited as an autosomal dominant trait that pursues a chronically remitting and relapsing course. The most dominant trait among the men is a quintessentially American geekiness. It may occur sporadically or in a familial form that is transmitted as an autosomal dominant trait. disorders caused by dominant alleles people with a dominant allele disorder need to have one allele to inherit the disease homozygous dominant and heterozygous individuals would be affected if a parent has a dominant allele, there is a 50/50 chance of passing it on to their offspring Diseases/Traits: achondroplasia and Huntington's. There's no healthy mating scheme with such a dominant trait, no matter whether the cat is heterozygous or homozygous. The inheritance of apospory has been investigated in a considerable number of plant species and, remarkably, is always inherited as a monogenic dominant trait.įrom scientific study it may be concluded that the Pd gene causing polydactyly is a harmless dominant trait with variable expression. Clouston syndrome is an hidrotic form of ectodermal dysplasia, inherited as an autosomal dominant trait with high penetrance.Īfter all, self-discipline was to be the dominant trait of both the proper slave master and the reformed inebriate.Īsthma linkage analysis has indicated that asthma may be inherited as a polygenic trait or as a monogenic, dominant trait with incomplete penetrance.