Extended Diploma in Applied Science
Whiteboards:
 What
is the name of the first stage
of protein synthesis?
 Transcription
 Which
molecule is produced
through transcription?
 mRNA
 Where
does Transcription happen?
 Nucleus
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Which base pairs with Guanine?
Cytosine
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In DNA, which base pairs with Adenine?
Thymine
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Which base replaces Thymine in RNA?
Uracil
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Bases are either Purines or…
Pyrimidines
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What is the name of the enzyme which unzips
the DNA to start transcription?
DNA Helicase
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What is the name of the enzyme which joins
the mRNA nucleotides together to form an
mRNA molecule?
RNA polymerase
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What is the stage of protein synthesis that
follows transcription?
Translation
1. To be familiar with the structure of tRNA
molecules.
2. To be able to describe the process of
translation
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Has a very different structure to mRNA
What does the t stand for?
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GCU
AAU
UAU
UGC
GGG
CCC
UAG
CGG
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You can find out which amino acid is coded
for by either the codon or the anticodon.
To recap:
Triplet code (DNA) e.g. ATG
Codon (mRNA)
e.g. UAC
Anticodon (tRNA)
E.g. AUG
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https://www.youtube.com/watch?v=z32M043rfI
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DNA Unwinds
mRNA strand formed (Transcription)
mRNA moves out of the nucleus.
tRNA molecules use codons to attach amino
acids. (Translation). This happens on the
ribosomes.
Protein folded into 3D shape
1. A4 paper
 Poster of an overview of:
 Transcription
 Translation
2. A3 paper
 Poster of overview of protein synthesis as a
whole. (This may be used in your assignment!!)
3. Work through booklet, completing all activities