How do genes and chromosomes share similarity from the point of view of genetical studies?

Explanation

By 1902, the chromosome movement during meisis had been worked out.
Walter Sutton and Theodore Boveri, (1902) noted that the behaviour of chromosomes was parallel to the behaviour of genes and used chromosome movement to explain Mendel's Laws.
They studied behaviour of chromosomes during mitosis (equational division) and during meiosis (reduction division). The chromosomes as well as genes occur in pairs and the two alleles of a gane pair are located of homologous sites of homologous chromosomes.

Chromosome movement in meiosis and germ cell formationin a cell with four chromosomes. Chromosomes segreate when germ cells are formed