Question

Write the salient features of the Sutton and Boveri concept.

Answer 1

Salient features of the chromosomal theory of inheritance:

1. Somatic cells of organisms are derived from the zygote by repeated cell division (mitosis). These consist of two identical sets of chromosomes. One set is received from a female parent (maternal) and the other from a male parent (paternal). These two chromosomes constitute the homologous pair.
2. Chromosomes retain their structural uniqueness and individuality throughout the life cycle of an organism.
3. Each chromosome carries specific determiners or Mendelian factors which are now termed as genes.
4. The behavior of chromosomes during the gamete formation (meiosis) provides evidence to the fact that genes or factors are located on chromosomes.