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a farmer observe some pea plants in his garden some are tall and have round.some are balled and wrinkle seeds but he wants all pea plants to be tall and have round seeds if not all atleast 90./. of plants can he get all desirable characters or not? |
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Answer» if we take the parents as , TTRR ttrr Gamets are TR TR tr tr F1 -----> TR TR tr TtRr TtRr tr TtRr TtRr SO the phenotype wud be "ALL TALL AND ROUND"----------> 100% RESULT For the F2 progeny , gamets are : TR Tr tR tr F2-----> TR Tr tR tr TR TTRR TTRr TtRR TtRr Tr TTRr TTrr TtRR Ttrr tR TtRR TtRr ttRR ttRr tr TtRr Ttrr ttRr ttrr So, the phenotype : 9:3:3:1 9---Tall and Round 3---Tall and wrinkled 3---balled and Round 1---balled and wrinkled Here the % of Tall and Round WOULD be So, he won't get 90% results if he GOES for F2 progeny. |
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