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#Question id: 4741


The F2 progeny from a particular cross exhibit a modified dihybrid ratio of 9 : 7 (instead of 9 : 3 : 3 : 1). What phenotypic ratio would be expected from a testcross of the F1?

#Section 3: Genetics, Cellular and Molecular Biology
  1. 1:3     

  2. 1:2:1      

  3. 3:1                   

  4. 2:1:1