Search results
Results from the WOW.Com Content Network
Mendelian inheritance does not apply to the inheritance of alleles that result in incomplete dominance and codominance. Explain why this is so. Describe the relationship between environment and phenotype.
Course: High school biology (DEPRECATED) > Unit 5. Lesson 2: Non-Mendelian inheritance. Co-dominance and incomplete dominance. Multiple alleles, incomplete dominance, and codominance. Pleiotropy and lethal alleles. Polygenic inheritance and environmental effects. Non-Mendelian inheritance review. Non-Mendelian inheritance.
Non-Mendelian inheritance refers to the inheritance of traits that have a more complex genetic basis than one gene with two alleles and complete dominance. Multiple allele traits are controlled by a single gene with more than two alleles.
Non-Mendelian inheritance is any pattern in which traits do not segregate in accordance with Mendel's laws. These laws describe the inheritance of traits linked to single genes on chromosomes in the nucleus. In Mendelian inheritance, each parent contributes one of two possible alleles for a trait.
Such modes of inheritance are called non-Mendelian inheritance, and they include inheritance of multiple allele traits, traits with codominance or incomplete dominance, and polygenic traits, among others, all of which are described below.
Non-Mendelian genetics include different forms of dominance, like codominance and incomplete dominance, and linked genes, which are not inherited completely independently of each other. They also include genes that affect more than one trait and traits that are determined by more than one gene.
During Mendel’s time, people believed in a concept of blending inheritance whereby offspring demonstrated intermediate phenotypes between those of the parental generation. This was refuted by Mendel’s pea experiments that illustrated a Law of Dominance.