What Is It Called When A Trait Is Determined By Multiple Genes?

What Is It Called When A Trait Is Determined By Multiple Genes? A polygenic trait is one whose phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic. What human traits are polygenic? Polygenic inheritance occurs when one characteristic is controlled by two

What Are The Four Exceptions To Mendelian Rules?

What Are The Four Exceptions To Mendelian Rules? Multiple alleles. Mendel studied just two alleles of his pea genes, but real populations often have multiple alleles of a given gene. Incomplete dominance. … Codominance. … Pleiotropy. … Lethal alleles. … Sex linkage. Which is an exception to Mendel’s principles? Exceptions to Mendel’s rules The principle