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In a Mendelian dihybrid cross when tall and yellow seeded plant was crossed with dwarf and green seeded plant, in F2 generation, 36 tall and green plants were obtained. What is the total number of progeny obtained in the cross? 

(A) 224

(B) 192

(C) 144

(D) 186

1 Answer

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Best answer

Correct Option- (B) 192

Explanation -

The dihybrid phenotypic ratio is 9 : 3 : 3 : 1. 

9 - Tall yellow 

3  -Tall green

3  - Dwarf yellow

1  - Dwarf green 

If there are 36 tall and green plants there will be 36 dwarf yellow, 12 dwarf green and 108 tall yellow plants. Thus the total number of progeny will be 192. 

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