List of top Biology Questions on DNA Replication

In DNA replication, which enzyme is responsible for unwinding the double helix and separating the DNA strands?
In a chromosome, there is a specific DNA sequence, responsible for initiating replication. It is called as:
Match List I with List II
List I List II
AFrederick GriffithIGenetic code
B Francois Jacob & JacqueIISemi-conservative mode of DNA replication
CHar Gobind KhoranIIITransformation
DMeselson & StahlIVLac operon

Choose the correct answer from the options given below:

If adenine constitutes 30% of the bases in a DNA molecule, what percentage of the bases is guanine?

Statement 1: Avery, McLeod, and McCarty discovered the semi-conservative nature of DNA.
Statement 2: Meselson and Stahl used \( \text{E. coli} \) to demonstrate the semi-conservative nature of DNA.