Question

Which is the first step to occur during the process of replication?

A. Synthesis of leading strand on parent DNA molecule
B. Addition of nucleotides to the lagging strand of the growing DNA molecule
C. Breaking of hydrogen bonds between complementary bases of parent DNA

Answer 1

first parent dna unwinds
for this breAking of hydrogen bonds b/w comple strands is necessary bec thats what gives dna the helical structure
then one strand acts as a template and sys of leading strand occurs
the lagging strand is then synthesised....
now u can answer it urself?

Answer 2

It'd be answer c