Which term refers to the genetic control of continuously varying traits such as height? a. incomplete dominanceb. codominantc. polygenicd. multi-allelice. pleiotropic

c. polygenic

Explanation:

Polygenic trait is trait that is controlled by more than one gene. This is different than Mendelian genetics in which one gene controls one trait (e.g. flower color). Expressed phenotype is mix of all genes that control it (each gene has the same influence on phenotype).

Traits that are polygenic are height, skin and hair color, intelligence etc.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.