MedVision ad

Someone help PLZ!!! <blue print of life> (1 Viewer)

Survivor39

Premium Member
Joined
May 23, 2003
Messages
4,467
Gender
Undisclosed
HSC
2003
tRNA = transfer RNA

mRNA = messenger RNA

When you have a gene that encodes a polypeptide (e.g. a protein for hair colour), the RNA polymerase in your cell transcribes this region in a process called transcription. This produce a primary trasncript (an unmodified RNA), which is then spliced (or modified) to become an mRNA. The mRNA then goes out of the nucleus into the cytoplasm and is used as a template for polypeptide synthesis in ribosomes (in a process called translation).

so basically: Gene ---> mRNA ---> polypeptide

tRNA is a special type of RNA that is also produced in a similar manner to mRNA. Except this tRNA is NOT translated. Instead the tRNA goes to the cytoplasm and "helps" the ribosome in translation because it brings amino acid residues that matches to mRNA into the ribosome subunits.

so basically: gene ---> tRNA ---> cytoplasm
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top