Write the salient features of Sutton and Boveri concept.

Explanation

Sutton and Boveri (1903) independently proposed the chromosome theory of inheritance. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it chromosomal theory of inheritance.
Salient features of the Chromosomal theory of inheritance:
(i) Somatic cells of organisms are derived from the zygote by repeated cell division (mitosis). These consist of two identicai' sets of chromosomes. One set is received from female parent (maternal) and the other from male parent (paternal). These two chromosomes constitute the homologous pair.
(ii) Chromosomes retain their structural uniqueness and individuality throughout the life cycle of an organism.
(iii) Each chromosome carries specific determiners or Mendelian factors which are now termed as genes.
(iv) The behaviour of chromosomes during the gamete· formation (meiosis) provides evidence to the fact that genes or factors are located on chromosomes.