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Alright, alright!
The bell just rung everyone take your seat.
We have a lesson
it's "From Genes To Proteins"
This is so boring.
😒
Well then, how do you want me to spice it up? 🤔
I've got an idea.
Most genes contain the information
needed to make functional molecules
(called proteins).
The journey from gene to protein is tightly controlled
(within each cell).
It consists of two major steps:
transcription
and translation.
Together, transcription and translation are known as
gene expression.
During the process of transcription,
the information in a gene's DNA is
transferred to a similar molecule called RNA
(in the cell nucleus).
RNA is made up of
(a chain of nucleotide bases),
but it has slightly different chemical properties
(just like DNA).
Messenger RNA
contains the information for making a protein
because it carries information from DNA
out of the nucleus into the cytoplasm.
(This ain't sarcasm.)
And this is where translation, the second step in getting from
a gene to a protein, takes place.
Messenger RNA,
interacts with a specialized complex,
(called a ribosome),
which "reads" the sequence of MRNA bases.
Each sequence of three bases, called a codon,
codes for one amino acid.
A type of RNA called transfer ribonucleic acid
assembles the protein, one amino acid at a time.
Protein assembly continues until the ribosome
encounters a "stop" codon.
Oh, I think I get it now.
The flow of information from DNA to RNA to proteins
is one of the most fundamental principles of molecular
BIOLOGY.
It is so important that it is sometimes called
the "central dogma."
Yup, and that ain't no
MYTHOLOGY.
Ok, you can stop now.
Ok.