A complementation test was conducted with 7 different mutant
organisms (numbered 1-7), all having the same mutant phenotype. All
7 mutants were crossed to each other and the results are below.
Using the chart of the complementation test, answer the following
questions. (6 points)
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
|
1 |
– |
+ |
+ |
– |
– |
+ |
+ |
|
2 |
+ |
– |
+ |
+ |
+ |
+ |
– |
|
3 |
+ |
+ |
– |
+ |
+ |
+ |
+ |
|
4 |
– |
+ |
+ |
– |
– |
+ |
+ |
|
5 |
– |
+ |
+ |
– |
– |
+ |
+ |
|
6 |
+ |
+ |
+ |
+ |
+ |
– |
+ |
|
7 |
+ |
– |
+ |
+ |
+ |
+ |
– |
A.) How many different genes are present in this set of 7
mutants?
B.) Is this mutation dominant or recessive in nature?
Please show work!! Im especially having trouble answering B.





