Epistasis and Complementation Video Lessons

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Problem: To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up complementation tests. You obtain the following results ("+" indicates that complementation was observed; "-" indicates that no complementation was observed).  mutation    1    2    3    4    5    6    7    1  -  2  -  -  3  +  +  -  4  -  -  +  -  5  +  +  -  +  -  6  +  +  -  +  -  -  7  -  -  +  -  +  +  -Which mutants are in the same complementation group as mutant strain 1?Select all that apply.a) 2b) 3c) 4d) 5e) 6f) 7

FREE Expert Solution

Recall: Mutants in the same complementation group do not complement each other (negative result)

: Mutants in different complementation groups complement each other (positive result)

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Problem Details

To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up complementation tests. You obtain the following results ("+" indicates that complementation was observed; "-" indicates that no complementation was observed).

  mutation    1    2    3    4    5    6    7  
  1  -





  2  -  -




  3  +  +  -



  4  -  -  +  -


  5  +  +  -  +  -

  6  +  +  -  +  -  -
  7  -  -  +  -  +  +  -

Which mutants are in the same complementation group as mutant strain 1?

Select all that apply.

a) 2

b) 3

c) 4

d) 5

e) 6

f) 7

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