What is the difference between DNA replication and transcription? - ProProfs Discuss
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What is the difference between DNA Replication and Transcription?

Asked by E. Stanley, Last updated: Dec 18, 2019

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C. Wasek

Love to do some charity work. Have a passion for writing and do it in my spare time

C. Wasek, Philanthropist, Post Graduate, Corpus Christi

Answered Nov 28, 2019

DNA replication and DNA transcription are two different processes that occur in a cell. DNA replication is the process of making more copies of DNA. This process is done in the preparation of cell division. At the beginning of DNA replication, the unwinding of the double helix is done by DNA helicase, and DNA polymerase moves along the strands to bind complementary nucleotides.

At the end of the process, the result is two exact copies of DNA double helices. DNA transcription is the process of copying DNA to produce RNA. A portion of DNA that codes for a specific gene is transcribed to mRNA.

At the beginning of the process, the unwinding of the double helix is done by DNA helicase, and RNA polymerase moves along the strands to bind complementary nucleotides. At the end of the process, mRNA is produced. mRNA serves as the blueprint for translation (protein synthesis), which takes place in the ribosome.

 

E. James

E. James

Answered Nov 20, 2019

DNA replicating is the procedure of producing two identical DNA strands from one, and it involves a series of operations. All of these processes take place during the S phase of the Inter-phase of cell cycle or cell division. It is an energy-consuming process, and primarily the three main DNA enzymes are engaged in this process.

DNA transcription is a crucial step in the primary process of gene expression and protein synthesis. RNA takes place during DNA transcription. DNA replication makes the two identical DNA strands to the original strand, while a strand mRNA is formed corresponding to the base sequence of a gene of the DNA strand in transcription.

DNA replication entails three significant enzymes. However, transcription only involves one enzyme. DNA replicating is a whole process, while transcription is only a piece of the process.

 

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