Download TRANSCRIPTION and TRANSLATION

Systems & Sustainability
Protein Synthesis
Name_____________________
Date______________________
What is a protein?
Where are the instructions to build a protein? ______________________
What are the two parts to protein synthesis?
________________________
_________________________
Draw a strand of DNA and label
the following structures: double
strands, thymine nucleotide,
deoxyribose sugar, phosphate.
Draw a strand of RNA and label
the following structures: single
strand, uracil nucleotide,
ribose sugar, phosphate.
List the three key differences between DNA and RNA.
FROM GENE TO PROTEIN
TRANSCRIPTION and TRANSLATION
Draw the outline of a cell with a nucleus.
Label the nucleus as the place of transcription
and the cytoplasm as the place of translation.
TRANSCRIPTION:
Give a brief summary of transcription.
*Draw a cell and nucleus with
a short strand of unwound DNA
made up with a nucleotide
sequence of TAC CCT ATT.
*Next to the DNA sequence,
draw the corresponding mRNA
nucleotides.
*Draw an arrow showing the
where the mRNA will go when
transcription is over.
What is a codon?_____________________________________________
TRANSLATION
Give a brief summary of translation.
Draw a cell with a nucleus.
Draw a ribosome with the
first mRNA codon attached
to it.
Draw a corresponding tRNA
with an amino acid attached
to it.
Show how the tRNA attaches
to the mRNA and how the
rest of the tRNA molecules
attach to the mRNA and how
the amino acids link together.
What is an anticodon?________________________________________
PUTTING IT TOGETHER
Describe how you can determine which amino acid is carried by which tRNA
molecule?
Transcribe and translate the following strand of DNA.
DNA
mRNA
tRNA
Amino Acid
Sequence
T
A
C
G
G
A
T
A
A
A
C
T
What might happen to the resulting protein if one of the letters in the DNA
sequence were removed?
What might happen to the resulting protein if some of the letters in the DNA
sequence were changed?