Definition of Dominant Trait. Before we can define exactly what a dominant trait is, we must first define and discuss many genetics terms. A gene, or unit of heredity, can have many different versions called alleles. There are often two kinds of alleles: Dominant allele: masks the effects of another allele; designated by an uppercase letter ; Recessive allele: effects are hidden by a dominant allele; designated by a lowercase letter ; Normally, individuals have two alleles for one gene: one from their mom and one from their dad.
Sydney is mostly a girls' name, but it is used for boys 4.31 percent of the time.
The people posting on the Sydney girl's name page are a bunch of silly liars. Sidney is the male spelling of the name, and is constantly misspelled with a y. Also Sidney in scream is an i, not a y. Those butts. It is certainly unique, only met one other female Sidney in my life and it was long ago and far away.