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Matthew 16:25

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Protein Synthesis
Part 2
Page 7

The story

The DNA holds the recipes for over 100,000 proteins

The DNA twisted ‘rope ladder’ has to be opened to get at the recipes

The DNA is opened by the HELICASE

The GYRASE works in tandem with the HELICASE and stops ‘supercoiling’

There is a PROMOTER REGION on the DNA that signals “Get READY to start copying”

The 3 letters T-A-C signal “START COPYING HERE”

so far

A
T
G
C
C
T
T
T
A
G
G
C
A
A
A

The genetic alphabet has only 4 letters

T
G
C

How many 4-letter words can be made with these 4 letters?

The answer is ...

64
A
A
G
T
C

TTT

TTC

TTA

TTG

CTT

CTC

CTA

CTG

ATT

ATC

ATA

ATG

G

GTT

GTC

GTA

GTG

TCT

TCC

TCA

TCG

CCT

CCC

CCA

CCG

ACT

ACC

ACA

ACG

GCT

GCC

GCA

GCG

TAT

TAC

TAA

TAG

CAT

CAC

CAA

CAG

AAT

AAC

AAA

AAG

GAT

GAC

GAA

GAG

TGT

TGC

TGA

TGG

CGT

CGC

CGA

CGG

AGT

AGC

AGA

AGG

GGT

GGC

GGA

GGG

There are 64 possible 3-letter combinations from our 4 letters

A - C - T - G

And here’s the one we’ve already come across – TAC, which means

‘START COPYING HERE’

CREATION

Part Two

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