Consider the following events which are significant in the development of improved varieties/hybrids of plants
1. Morgan discovered genes on chromosomes.
2. Knight noted that male and female parents contributed equally to F₁-generation.
3. Correns and de Vries rediscovered Mendel's laws of heredity.
4. Tomato carrying flavour gene is introduced.
What is the correct chronological sequence of the above events?

A. 1, 2, 3 and 4

B. 2, 3, 1 and 4

C. 3, 2, 1 and 4

D. 2, 1, 4 and 3

Answer: Option B

Solution(By Examveda Team)

The correct chronological sequence of the event in the development of improved varieties or hybrids of plants are as follows:
1. Knight noted that male and female parents contributed equally to the F₁-generation.
2. Correns and de Vries rediscovered Mendel's laws of heredity.
3. Morgan discovered genes on chromosomes.
4. Tomato-carrying flavour gene is introduced.