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Inheritance

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Question 16

In tomato plants, the allele for purple stem (PPP) is dominant to the allele for green stem (ppp). Two heterozygous purple-stemmed plants (PpPpPp) are crossed. The table below shows the number of offspring of each phenotype produced from this cross:

PhenotypeNumber of offspring
Purple stem1341
Green stem447

Calculate the number of these offspring that is most likely to be heterozygous.

[3]

Inheritance Questions

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