Which of the following statement for chromosomal theory of inheritance is incorrect ?

Options

A. Pairing and separation of a pair of chromosomes would lead to the segregation of a factor they carried
B. Behaviour of chromosomes is parallel to the behaviour of genes
C. The two alleles of a gne pair are located on homologous sites on homologous chromosomes
D. Chromosomes as well as genes occur in pairs

Answer

A