For adults, the most common sources of food allergic reactions are: 1  shellfish (that includes shrimp, lobsters, and crabs) 2  nuts from trees (such as walnuts) 3  fish. 4  eggs. more information...
When binary traits are available, they become classified as Dominant or recessive. A dominant trait is a trait the is evident by the appearance of the organism. A recessive trait is a trait the is present but is not evident in the appearance of the organism. Dark hair is a dominant trait to a recessive light hair trait. Two brunettes may have a chance of having a blonde child due to the fact that either of them may carry the blonde haired gene and not show it.
Dominant means that one of the versions trumps the other. In our example here, brown is dominant over blue so you end up with brown eyes. The way people write out dominant and recessive traits is the dominant one gets a capital letter and the recessive one a lower case letter.So for eye color, brown is B and blue is b.ominant means that one of the versions trumps the other. In our example here, brown is dominant over blue so you end up with brown eyes. The way people write out dominant and recessive traits is the dominant one gets a capital letter and the recessive one a lower case letter.