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  •  Which of the following accounts for phenotypic ratio in masking gene interaction in F2 generation?  Option: 1 9:3:3:1  

 Which of the following accounts for phenotypic ratio in masking gene interaction in F2 generation?
 

Option: 1

9:3:3:1
 


Option: 2

1:2:1
 


Option: 3

9:7
 


Option: 4

12:3:1
 


Answers (1)

best_answer

 

 

As we have already studied in Dominant Epistasis -

  • When two contrasting alleles are brought together, one of them dominates over the other in F1. 
  • In the phenomenon of epistasis, two independent non-allelic genes that affect the same phenotype interact in such a way that the dominant allele of one gene (for example, A) masks the effect of another gene (for example B).
  • Therefore, gene A is said to be epistatic to gene B or gene B is said to be hypostatic to gene A.

Hence, the correct option is (d). 
 

Posted by

Nehul

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