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In a plant tallness is dominant over dwarfness and red flower is dominant over white. Starting with the parents work out a dihybrid cross. What is standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interac...

  

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In a plant tallness is dominant over dwarfness and red flower is dominant over white. Starting with the parents work out a dihybrid cross. What is standard dihybrid ratio? Do you think the values would deviate if the two genes in question are interacting with each other?

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Ratio - tall red : tall white : dwarf red : dwarf white

                 9 :        3 :          3 :         1

Yes, the ratio will deviate if the two genes are interacting with each other. In this condition the genes do not independently assort with each other. So, ratio will be changed from 9:3 :3 : 1.

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