DNA Analysis Gizmo - Activity B
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by TAYLOR BRASS
| 13 Questions
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1
2
3
4
5
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7
1
1 pt
Describe frog A's phenotype. Select all that apply.
Yellow skin
Spotted
Pink Eyes
Green Eyes
Blue skin
2
1 pt
Which frogs share frog A's skin color, but not its eye color or spots?
Frogs C & D
Frogs F & N
Frogs E & M
3
1 pt
Which codon or codons are identical in all three frogs?
Codon 1 (bases #1 - 3)
Codon 2 (bases #4 - 6)
Codon 5 (bases #13 - 15)
Codon 6 (bases #16 - 18)
4
1 pt
Scan more frogs with orange skin until you are confident that you have identified the correct codon that represents the allele for orange skin. Describe the results:
5
1 pt
Which codon codes for orange skin in this frog population?
Codon 1 (bases #1 - 3)
Codon 6 (bases #16 - 18)
Codon 4 (bases #10 - 12)
Codon 5 (bases #13 - 15)
6
1 pt
Which codon do they share?
7
1 pt
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8
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10
11
12
13
8
1 pt
Fill in the column for orange skin in the table. For the codon pattern, shade in the dark bands but not the light colored bands. Then, continue scanning frogs until you are able to complete the rest of the columns in the table.
9
1 pt
Does the same codon always control skin color, eye color, and the presence of spots? Why do you think this is the case?

10
1 pt
Based on the DNA sequence, the frog's phenotype is...
Blue skin
Orange skin
Pink eyes
Spotted
Not spotted
11
1 pt
The codons and traits are...
the same
different
12
1 pt
Suppose a biologist found a rare frog and wanted to determine which species it belonged to. How could a biologist use a DNA sequence of the frog to accomplish this task?

13
1 pt
What other applications of DNA sequences can you think of?

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