Chromosomal basis of Inheritance - Write short notes.
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Chromosomal Basis of Inheritance (Sutton and Boveri)
Chromosomal basis of inheritance given by Boveri and Sutton, states that the chromosomes (genetic material) present in the nucleus of a cell are responsible for Mendalian Inheritance. They united the knowledge of chromosomal segregation with Mendalian Principles and called it Chromosomal basis of Inheritance.
This theory was first confirmed by Thomas Morgan who studied the genetic behaviour of Drosophila melanogaster ( fruit flies).
Morgan observed that the eye colour of Drosophila melanogaster is inherited differently in males and females.
Chromosomal:
The chromosomal basis of Inheritance is the theory given by T H Morgan from his experiments on the Drosophila. Due to his experiments on Drosophila, Morgan is also called as the Father of Drosophila genetics.
As a result of his experiments, Morgan found that the characters that are expressed in the Drosophila are carried by the chromosomes. The different types of chromosomes that are present in the individual Drosophila are responsible for characters like eye color, etc.
It is not completely true as we know that actually gene is responsible for character, but it was a huge leap from Mendel’s Factors to Morgan’s Chromosomes.