Polygenic Trait Aspects. Polygenic trait molding is done mostly with the environment and genes. More than one gene determines these traits, with each gene giving a small, yet additive effect. Multifactorial traits do not exhibit Mendelian ratios, and are determined between genes, or a gene, and the environment.olygenic Trait Aspects. Polygenic trait molding is done mostly with the environment and genes. More than one gene determines these traits, with each gene giving a small, yet additive effect. Multifactorial traits do not exhibit Mendelian ratios, and are determined between genes, or a gene, and the environment.
Definition of Sibilance. Sibilance is a special case of consonance in which the repeated consonant sound is either s, sh, z, or any of the other recognized sibilant sounds. Sibilance occurs when the repetition of these specific consonants are in close proximity.
Sybil /sy-bil/ [2 sylls.] as a girls' name is pronounced SIH-bul. It is of Greek origin, and the meaning of Sybil is prophetess, oracle. Variant of Sibyl.Actress Cybill Shepherd.ybil is a very prominent first name for females (#693 out of 4276, Top 16%) but an unusual surname for both adults and children. (2000 U.S. Census). Charted below is the baby name popularity of Sybil for girls. Sybil reached its highest rank of #331 in the U.S. in the 1920s, but is not found in the list currently.