How do DNA replication and DNA transcription differ?

Question

Logan Allen · Accepted Answer

DNA Replication is when a DNA strand is used to create another DNA strand, while DNA transcription is used to create a complementary RNA strand.

In essence both processes work in the same way, but their products and some of their tools differ. For example:

Replication uses the enzyme DNA Polymerase while transcription uses RNA Polymerase.
Replication results in a complementary DNA strand, while replication a complementary mRNA strand.
As you study both concepts, you will find that they are similar in about every other aspect.

Here are two Crash Course Videos that help grasp these concepts:

DNA Replication

DNA Transcription

Hope that helped :)

Hudson Ansley · Answer

undefined DNA replication involves the synthesis of a new DNA strand using an existing DNA strand as a template, while DNA transcription involves the synthesis of an RNA molecule using a DNA template. Replication occurs in the nucleus during the S phase of the cell cycle, while transcription can occur in the nucleus or cytoplasm. Replication produces two identical DNA molecules, while transcription produces an RNA molecule complementary to one strand of the DNA template. Replication requires the enzyme DNA polymerase, while transcription requires RNA polymerase.

Luna Cruz · Answer

undefined DNA replication involves the synthesis of a complementary strand of DNA using the existing DNA strand as a template, while DNA transcription involves the synthesis of mRNA using DNA as a template. DNA replication occurs during the S phase of the cell cycle and ensures the accurate duplication of the entire genome, while DNA transcription occurs in the nucleus and results in the production of mRNA molecules that carry the genetic information from the DNA to the ribosomes for protein synthesis. DNA replication requires the enzyme DNA polymerase, along with other accessory proteins, to synthesize the new DNA strand, while DNA transcription requires RNA polymerase to catalyze the formation of mRNA. DNA replication produces two identical daughter DNA molecules, each containing one original strand and one newly synthesized strand, while DNA transcription produces multiple mRNA molecules that are complementary to the DNA template.