polygenic inheritance is when more than one genes are responsible for a character/phenotype. for example human skin color. if one want to draw a pedigree for that, he will not be able to succeed....
An inheritance pattern for autosomal gene pairs. The genetic trait displayed results from one parent's gene dominating over the gene inherited from the other parent.
Deviations of Mendelian ratio include incomplete penetrance, late manifestation, gene-gene interaction (epistasis), Linkage, variable expression and lethal alleles.
In Mendelian inheritance the allele has a one to one effect on the phenotype. A polygenic effect is given when many genes contribute in an additive fashion to the phenotype. Height is such and may...
To make this simple cytoplasmic inheritance is the inheritance of genes in organelles such as mitochondria that do not go through regular mitosis which is Mendelian inheritance. It is a bit more...