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Pea plants heterozygous for flower position and stem length (AaTt) are allowed to self-pollinate, and 400 of the resulting seeds are planted. Draw a Punnett square for this cross. How many offspring would be predicted to have terminal flowers and be dwarf?

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ShyzaSling

Answer:

            AT             At           aT             at

AT      AATT        AATt       AaTT        AaTt

At        AATt         AAtt        AaTt        Aatt

aT        AaTT        AaTt        aaTT       AaTt

at          AaTt         AaTt        aaTt        aatt

The results of the punnet square show that one out of 16 offsprings will have both the qualities of having terminal flowers and being a dwarf.

A punnet square can be described as a diagram which depicts the likely outcomes of a cross. In the above punnett square, for the plants to have both terminal flowers and to be dwarf, both the alleles should be recessive for the traits.

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