Transcrip_Translation

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Transcript Transcrip_Translation

So proteins are determined by the chain of amino acids that
make them up
But how do our protein makers know which amino acids to
add?
We Shall Start the
Process of Transcribing the
DNA (Genetic Blue Print)
1. Open up and Read the DNA strand
2. Make a copy of the DNA sequence in RNA that
we will call Messenger RNA (mRNA)
3. Send the copy out of the Nucleus to be read off
of, so that proteins can be made 
Let’s make a Template People! We need to copy DNA, but
only copy it – how about a messenger version called mRNA 
mRNA Leaving Nucleus
This is the end of Transcription – the creation of mRNA!
When mRNA meets tRNA, the message is written, or
TRANSLATED! The result is amino acid linking into protein!
Note how the tRNA to the left leaves and donates the amino
acid to the neighbor on the right 
DNA Sentences are
Wonderful – okay, I’m lying,
but they’re on the test 
On mRNA, there are words,
composed of 3 letters
3 Letters = 1 Word (a CODON)
Each word = an AMINO ACID
CODON
Amino Acid
GCA
Alanine
AGA
Arginine
CCA
Proline
GGA
Glycine
GUA
Valine
UGU
UGA
Cysteine
STOP construction!
•
The ribosome is the site of protein
synthesis, one amino acid at a time.
•
tRNA is the evil little delivery
system, which happens to be made
of RNA
mRNA copied off a DNA
strand pops out of the
nucleus!
Amino Acid chain growing
tRNA delivering the Amino Acid to
the matching mRNA destination
Amino Acids to protein
mRNA
And this happens very quickly all at once...