Summary Notes and Worksheets - Quiz next day!

NOTES: a summary of what we learned about protein synthesis
A diagram worksheet summary
and a key to the Protein synthesis worksheet we did last day

More practice generating mRNA, tRNA and Amino Acids

Assignment
Draw a cartoon summarizingTranscription and Translation

Here's two other explanations of transcription and translation

We did some lessons on Protein synthesis- Review these steps

TRANSCRIPTION

1.      Using the DNA as a template, RNA polymerase synthesizes the messenger

RNA from the 5’to 3’ direction 

2.     The messenger RNA is protected with a 5’ cap and a polyA tail

3.     The introns (or junk messages) are edited out of the strand

4.     The exons (or essential messages) are kept in

Now the mRNA is ready to move out to the cytoplasm to be translate By the ribosome.

TRANSLATION

PROTEIN SYNTHESIS TAKES PLACE

AT THE RIBOSOME, composed of

The LARGE RIBOSOMAL SUBUNIT AND

SMALL RIBOSOMAL SUBUNIT.

THE AMINO ACIDS ARE FETCHED BY

THE tRNA (transfer RNA) and tRNA has the ANTIcodon,

 the complement for the mRNA.

The tRNA goes to a binding site on the ribosome and

they release their amino acid.  The ribosome synthesizes

the polypeptide by using dehydration synthesis.

The start codon is always, universally  AUG.  The start anticodon is

Always UAC.  And the start amino acid is MET or methionine.

When the start codon gets a tRNA, it is called INITIATION.

WHEN THE POLYPEPTIDE CHAIN IS GENERATED ,it is called

ELONGATION

When the RELEASE FACTOR LANDS ON THE STOP CODON,

 it is called TERMINATION.