## 1. Chromosome Theory of Inheritance The chromosome theory of inheritance is the physical basis for *Mendelian Inheritance*. It is composed of *2* fundamental principles: 1. Genes have specific loci on chromosomes. 2. Chromosomes undergo segregation and independent assortment. What is a *loci*? It is plural for "locus."It is a term describing the specific location or address of a gene on a chromosome. Mendel spoke of "heritable factors." Now, where would these heritable factors be located...? ...IN GENES! Which are alongside chromosomes (which are basically definite, fixed addresses I mentioned before for *loci*.)