The occurrence of which of the following could allow you to distinguish between the processes of DNA replication and transcription?
- The breaking of hydrogen bonds.
- The formation of hydrogen bonds.
- The formation of phosphodiester bonds.
B. 3 only
C. none of them
D. 2 only
E. 1 and 2 only
The correct answer is C.
Let´s review what DNA replication and transcription are :
DNA replication is, like the name suggests, the process that allows the production of 2 replicas of one DNA molecule. Its purpose is to permit cell division during growth, tissue repair, and ultimately, biological inheritance.
DNA transcription is the process that allows the formation of a single complementary strand of RNA, based on the DNA structure. It is a process that can be divided into 3 steps : initiation, elongation and termination ; its byproducts will be made into functional proteins.
Therefore, the main difference between the processes of DNA replication and transcription is their purpose.