Question

what are the factors oriented chromosome appearing in f1 generation after cross pollination among tall and dwarf pea plants.


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Answer 1

F1 generation contained all tall plants when the two plants one with tall character and other with dwarf trait underwent cross pollination . When F1 generation underwent self pollination the trait they was unexpressed in F1 generation (dwarf) was observed in F2 progeny . So the ratio of tall plants : dwarf plant were in the ratio 3:1in the F2 progeny .

The above experiment indicted that although both the traits of tallness and dwarf ness were inherited in F1 plants only the dominant (tallness ) trait was expressed. This shows that traits might be dominant or recessive and they may not show up in an individual but  are passed  on to the next generation .