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CELLULAR CONTROL
· Genes are lengths of DNA that are found on
chromosomes that code for polypeptides
and proteins, including enzymes.
· The genetic code: Triplets nucleotide bases
in DNA, transcribed/cloned to 3 letter
codons on mRNA a copy of the DNA coding
strand…read more

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CELLULAR CONTROL…read more

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CELLULAR CONTROL : TRANSCRIPTION
· RNA Polymerase attaches to DNA at start of
the gene
· Hydrogen bonds between complementary
base pairs break, DNA unwinds and unzips
· One of the strands is used as template to
make an mRNA copy…read more

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TRANSCRIPTION CTD
· RNA polymerase lines up free nucleotide
bases along the template strand so it is
complementary to the DNA template strand
· RNA nucleotides pair up with specific bases
and join up to make an mRNA molecule
· RNA polymerase moves along the strand
separating strands and assembling an mRNA
strand…read more

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TRANSCRIPTION CTD
· The hydrogen bonds between uncoiled
strands reform once RNA polymerase passes
it and DNA is a doubled helix…read more

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