NEETZoologyMolecular Basis of Inheritance
What did Watson and Crick immediately propose after proposing the double helical structure of DNA?
Options
- AA replication mechanism for DNA
- BA mechanism for the synthesis of proteins
- CA hypothesis for the evolution of RNA
- DA hypothesis for the evolution of life processes
Correct answer
A. A replication mechanism for DNA
Step-by-step solution
While proposing the double helical structure for DNA, Watson and Crick had immediately proposed a scheme for replication of DNA . To quote their original statement that is as follows: ‘‘It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material’’ (Watson and Crick, 1953). The scheme suggested that the two strands would separate and act as a template for the synthesis of new complementary strands. After the completion of repli