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.
Meaning of Sydney. English name. In English, the name Sydney means - Variant of Sidney: Wide Island: south of the water; from Sidon.. Other origins for the name Sydney include - English, French, French, French.The name Sydney is a unisex name and can be used for a boy or girl name (male or female). English Name Meaning - Variant of Sidney: Wide Island: south of the water; from Sidon.