Saturday, October 24, 2015

How does the nucleus and ribosomes work together during protein synthesis?

For a gene to work, the genetic instructions in the DNA
molecule must be decoded. The first step is to copy the DNAsequence into RNA. There are
three kinds of RNA: Messenger RNA, Ribosomal RNA (proteins are made on ribosomes), and
Transfer RNA.


DNA is located in the Nucleus. It is a long
strand of sugars and phosphates that is wound around each other in the form of a
double-helix.  The DNA contains the code for the animal/plant/cell life processes and
structures.  RNA is used to transfer, transcribe, and build the proteins that are used
to make more DNA.


The messenger RNA moves into the
cytoplams and attaches to a ribosome. As each codon of the Messenger RNA moves through
the ribosome, the proper amino acid is brought into the ribosome by transfer RNA. The
ribosome joins together each amino acid. In this way the protein chain grows.  When the
ribosome reaches a stop codon, it releases the newly formed polypeptide and the process
of translation is complete.

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