A pure tall and a pure dwarf plant were crossed to produce offsprings. If offsprings were self crossed, then the ratio between true breeding tall to true breeding dwarf would be

1 : 1

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3 : 1

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2 : 1

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1 : 2 : 1

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Solution

The correct option is A 1 : 1
Pure tall crossed with pure dwarf: TT x tt ---> Tt (F $_{1}$ generation - Tall)
Selfing of F $_{1}$ : Tt X Tt
Fusion causes: TT (Tall), Tt (Tall), Tt (Tall) and tt (Dwarf)
Ratio between true breeds ----> TT : tt = 1 : 1

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A pure tall and a pure dwarf plant were crossed to produce offsprings. If offsprings were self crossed, then the ratio between true breeding tall to true breeding dwarf would be

The correct option is A 1 : 1Pure tall crossed with pure dwarf: TT x tt ---> Tt (F1 generation - Tall)Selfing of F1: Tt X TtFusion causes: TT (Tall), Tt (Tall), Tt (Tall) and tt (Dwarf)Ratio between true breeds ----> TT : tt = 1 : 1

The correct option is A 1 : 1
Pure tall crossed with pure dwarf: TT x tt ---> Tt (F $_{1}$ generation - Tall)
Selfing of F $_{1}$ : Tt X Tt
Fusion causes: TT (Tall), Tt (Tall), Tt (Tall) and tt (Dwarf)
Ratio between true breeds ----> TT : tt = 1 : 1