Question

the tall pea plant bearing red colour flowers (TTRR) is crossed with dwarf pea plant bearing white flowers( TTRR) represents the result obtained in F2 generation of daily bird cross the help of checker board. mention ratio of different plants obtained in F2 generation
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Answer 1

Answer:

TR Tr tR tr

TR TTRR TTRr TtRR TtRr

Tr TTRr TTrr TtRr Ttrr

tR TtRR TtRr ttRR ttRr

tr TtRr Ttrr ttRr ttrr

Tall pea plant bearing red flowers - TTRR

Short pea plant bearing white flowers - ttrr

F1 generation - TtRr

Selfing of F1 - TtRr X TtRr

Gametes - TR,Tr, tR, tr TR, Tr, tR, tr

F2 generation:

9:3:3:1 is the phenotypic ratio.

9 Tall red : 3 Tall white: 3 Dwarf red: 1 Dwarf white

Answer 2

Answer:

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If tall pea plant bearing red flowers is crossed with a short pea plant bearing white flowers. What will be the phenotypic ratio of F

2

generation?

Medium

Solution

Correct option is B)

TR Tr tR tr

TR TTRR TTRr TtRR TtRr

Tr TTRr TTrr TtRr Ttrr

tR TtRR TtRr ttRR ttRr

tr TtRr Ttrr ttRr ttrr

Tall pea plant bearing red flowers - TTRR

Short pea plant bearing white flowers - ttrr

F1 generation - TtRr

Selfing of F1 - TtRr X TtRr

Gametes - TR,Tr, tR, tr TR, Tr, tR, tr

F2 generation:

9:3:3:1 is the phenotypic ratio.

9 Tall red : 3 Tall white: 3 Dwarf red: 1 Dwarf white

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