Download Transcription and Translation

Name
Date
Period
Transcription and Translation
Part A:
1. Below is a portion of a gene on a DNA molecule.
TACCCTTGCATACGTCTGACATAAAAAAGG
Write out the DNA chain that would bond to the above chain.
2. Write out the base sequence for the mRNA that would be formed from the transcription of the original DNA molecule
3. Circle the codons in the mRNA chain above.
4. Write the amino acid sequence of the protein formed from translation of the mRNA. (use Figure 1)
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Part B
1. Using Figure 1, complete the Data Table for each protein molecule
Protein
Amino Acid
DNA Triplet
mRNA Codon
tRNA anticodon
CTA
1
AAG
UCC
Proline
2
Alanine
GGA
Methionine
3
GGC
AUA
2. In what ways do DNA and RNA nucleotides differ?
3. Explain how mRNA is formed.
4. What is the role of tRNA in translation?
Name
5. How do ribosomes assist in the production of proteins?
Date
Period
6. What is a codon and an anticodon?
7. What is the start codon?
8. What is the difference between an intron and an exon?
9.How is DNA Replication similar to Transcription?
mRNA Codon
A
G
U
C
Lysine
Arginine
Isoleucine
Threonine
A
Lysine
Arginine
Methionine
Threonine
G
Asparagine
Serine
Isoleucine
Threonine
U
Asparagine
Serine
Isoleucine
Threonine
C
Glutamic acid
Glycine
Valine
Alanine
A
Glutamic acid
Glycine
Valine
Alanine
G
Aspartic acid
Glycine
Valine
Alanine
U
Aspartic acid
Glycine
Valine
Alanine
C
“Stop” codon
“Stop” codon
Leucine
Serine
A
“Stop” codon
Trytophan
Leucine
Serine
G
Tyrosine
Cysteine
Phenylalanine
Serine
U
Tyrosine
Cysteine
Phenylalanine
Serine
C
Glutamine
Arginine
Leucine
Proline
A
Glutamine
Arginine
Leucine
Proline
G
Histidine
Arginine
Leucine
Proline
U
Histidine
Arginine
Leucine
Proline
C
A
G
U
C
Second Base in Code Word
Third Base in Code Word
First Base in Code Word
Figure 1