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THE GENOTYPE ...

Question

THE GENOTYPE OF GREEN STEMMED TOMATO PLANT IS DENOTED AS GG AND THAT OF PURPLE STEMMED TOMATO PLANT IS DENOTED AS gg. WHEN THESE 2 ARE CROSSED WITH EACH OTHER:-
(A)WHAT COLOR OF STEM WOULD YOU EXPECT IN F1 PROGENY?WHY?
(B)GIVE THE PERCENTAGE OF PURPLE STEMMED PLANTS IN F1 PLANTS ARE SELF POLLINATED
(C)IN WHAT RATIO WOULD YOU FIND THE GENOTYPES GG AND gg IN THE PROGENY?DRAW A FLOW CHART IN SUPPORT OF YOUR ANSWER.

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Solution

1. Progeny will have green stem colour.
2. 25%.
3. 1:2:1 where 1 progeny have GG genotype, 2 will have Gg genotype and 1 will have gg genotype.

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