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The phenotypic ratio of trihybrid cross in F 2 -generation is? 27:9:9:9:3:3:3:1 9:3:3:1 1:4:6:4:1 27:9:3:3:9:1:2:1

The phenotypic ratio of trihybrid cross in F2-generation is?

  1. 27:9:9:9:3:3:3:1

  2. 9:3:3:1

  3. 1:4:6:4:1

  4. 27:9:3:3:9:1:2:1

Grade:12

4 Answers

Vikas TU
14149 Points
3 years ago
Dear student 
, a trihybrid cross yields a phenotypic ratio of 27:9:9:9:3:3:3:1. This reflects the phenotypes generated by the 64 genotypic combinations resulting from 8 different male gametes fertilizing 8 different female gametes.
Vikas Amritiya
askIITians Faculty 230 Points
3 years ago
  • A cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. Consider a cross of F2​ generation between organisms with genotype AaBbCc.
  • As shown in the figure the phenotypic ratio of a trihybrid cross in F2​ generation will be 27:9:9:9:3:3:3:1. 

    Thus the correct answer is option A.
  •  
adilakshmigogada 27
101 Points
3 years ago
  • A cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. Consider a cross of F2​ generation between organisms with genotype AaBbCc.
  • As shown in the figure the phenotypic ratio of a trihybrid cross in F2​ generation will be 27:9:9:9:3:3:3:1. 

    Thus the correct answer is option A...
  •  
irshad hussain
99 Points
2 years ago
  • A cross between two individuals that are heterozygous for three different traits is called a trihybrid cross. Consider a cross of F2​ generation between organisms with genotype AaBbCc.
  • As shown in the figure the phenotypic ratio of a trihybrid cross in F2​ generation will be 27:9:9:9:3:3:3:1. 

    Thus the correct answer is option A

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