Differences between replication and transcription.

REPLICATION:

• The process of making two daughter strands where each daughter strand contains half of the original DNA double helix.
• The purpose of replication is to conserve the entire genome for next generation.
• Enzyme required- DNA Polymerase.
• It occurs- in the S phase of cell cycle. , Along the both strands of DNA.
• It is the preparation for cell division.
• Replicated DNA strand remains hydrogen bonded to its template DNA strand.
• This process requires RNA primer to start the process.
• Product remains within the nucleus.
• It involves unwinding and splitting of entire genome.
• More accurate than transcription.
• Speed is generally more as compared to transcription. 

TRANSCRIPTION:

• The process of synthesis of RNA using DNA as a template is called transcription.
• Purpose- To make RNA copies of individual genes.
• Enzyme required- RNA Polymerase.
• Occurrence- in G1 and G2 phases of cell cycle, Along one strand of DNA. 
• It is the preparation for protein translation.
• Transcribed RNA strand separates from its DNA template strand.
• No primer is required.
• Most part of product i.e., mRNA passes from nucleus to cytoplasm.
• It involves unwinding of only those genes which are to be transcribed.
• Comparatively less accurate than replication.
• Speed is less as compared to replication.