Download DNA DRY LAB

Name: __________________________
Period: _______
Date: __________
DNA DRY LAB
The following is the base sequence on one strand of a DNA molecule:
AATGCCAGTGGTTGCACTATGA
1.
Give the base sequence of the complementary DNA strand.
2.
Give the base sequence of the strand of mRNA read from the original DNA strand.
3.
Give the base sequence of the strand of tRNA read from the mRNA strand.
4.
Use your amino acid code wheel to list the amino acids in this protein fragment.
5.
If the sixth nucleotide in the original DNA strand were changed from C to G, what would the
resulting mRNA base sequence be?
Mutated Original
AATGCGAGTGGTTGCACTATGA
Complementary
Mutated DNA
mRNA
tRNA
6
Use your amino acid code wheel and list amino acids in the mutated strand from 4.
7.
If a G were added to the original DNA strand after the 3rd nucleotide, what would the resulting
mRNA look like?
Mutated Original
AATGGCCAGTGGTTGCACTTGA
Complementary
Mutated DNA
mRNA
tRNA
8.
Use your amino acid code wheel and list amino acids in the mutated strand from 6.
9.
If the 8th nucleotide in the original DNA strand was removed, what would the
resulting mRNA sequence be?
Mutated Original
AATGCCATGGTTGCACTGA
Complementary
Mutated DNA
mRNA
tRNA
10.
Use your amino acid code wheel and list amino acids in the mutated strand from 8.
11. Compare the results of the three types of mutation. Which had the biggest effect and why?