Transcription
* Input: DNA (a gene)
* Process: DNA is used as a template to create a complementary RNA molecule (mRNA).
* Output: mRNA (messenger RNA).
Translation
* Input: mRNA
* Process: The mRNA sequence is read by ribosomes and used to assemble a chain of amino acids, following the genetic code.
* Output: A polypeptide chain (protein).
In Summary:
* Transcription converts the genetic information from DNA into a messenger molecule (mRNA).
* Translation uses the mRNA to build a protein, which is the functional product of the gene.
Think of it like this:
* Transcription: Copying a recipe from a cookbook (DNA) into a note (mRNA).
* Translation: Using the note (mRNA) to actually make the dish (protein).
Key Points:
* Transcription takes place in the nucleus of a cell.
* Translation takes place in the cytoplasm of a cell, specifically at ribosomes.
* Both processes are crucial for protein synthesis, which is essential for all cellular functions.