When a dihybrid cross is fitted into a Punnett square with 16 boxes, the maximum number of different phenotypes available are
A
8
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B
4
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C
2
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D
16
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Solution
The correct option is B 4 The F2 generation of dihybrid cross yields 64 progenies. The phenotypes produced are 4 in number. They are: round yellow, round green, wrinkled yellow and wrinkled green in Mendel's dihybrid cross. The genotypic ratio is 9:3:3:1.