Question

The chromosome theory was proposed by ______.

Options

• Theodor Boveri

• Thomas Hunt Morgan

• W. S. Sutton

• Sutton and Boveri

Answer 1

The chromosome theory was proposed by Sutton and Boveri.

Explanation:

The chromosome theory of inheritance was proposed independently by Walter S. Sutton and Theodor Boveri in 1903. They observed that the behavior of chromosomes during meiosis parallels the segregation and independent assortment of Mendelian factors (genes). This theory states that genes are located on chromosomes, and it is the chromosomes that undergo segregation and independent assortment during meiosis, thereby explaining Mendel’s laws of inheritance at the cellular level. The parallel behavior of chromosomes and genes was key in linking Mendelian genetics with cytology, establishing that chromosomes carry hereditary information.