Thursday, August 5, 2010

What Is The Difference Between Transcription And Translation And Replication?

When doing a Google search for transcription, I was looking for information about transcription work. I was wondering why I was sometimes getting search results about DNA.

I didn’t realize that transcription had several meanings. To me, transcription means typing what’s recorded.

To confuse me even more, some people were asking what the difference was between “transcription” and “translation.” I thought everyone knew that transcription work involves typing from a recording and translation work means translating from one language to another.

After doing some research, I found out that there are other meanings which explained the search results.

I don’t want to get too technical here, so here’s a simple explanation.

RNA transcription is the process of DNA being read and RNA being made based on a particular DNA strand. It involves the production of an mRNA molecule. The process starts after the two strands of a DNA molecule separate and then one of the strands becomes a pattern for an mRNA molecule. The individual molecular strands then link together to form a strand of mRNA. RNA transcription is the production or synthesis of RNA encoded by DNA. So DNA sequences are read to produce mRNA transcripts.

DNA replication is the process by which one double helix of DNA is duplicated into two identical double helices which are also identical to the mother DNA.

Translation is taking the RNA just made and using it to make a protein. Translation takes place after transcription of the genetic code into mRNA has been started. Translation refers to protein synthesis, in which proteins are made by reading the sequence information after the mature and processed mRNA by a ribosome.

To me, transcription still refers to transcribing from a recording. But I thought you might want to find out why you’re getting some DNA information when doing research about transcription.

If you're looking for transcription work from home, check out these insider transcription resources - How to become a general transcriptionist and get general transcription work from home.

No comments: