state gov Kerala PSC Degree (Common Preliminary Examination) Mock Test Series 2025 General Science Biology Genetics and Evolution
Which of the following statements regarding the discovery of DNA structure is correct?
- In 1953, James Watson and Francis Crick proposed the double helical structure of DNA.
- The model explained how genetic information is replicated and passed on to the next generation.
- Watson and Crick proposed the model based solely on their experimental research.
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2, and 3