In wheat, when a green plant was self fertilized the progeny had 20 green seedling and 14 white seedling; this result indicates that the parents were

True breeding

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Homozygous for one allele

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Heterozygous for one allele

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Heterozygous for two duplicate allele

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Solution

The correct option is D Heterozygous for one allele
When the parents were crossed and both characters were obtained in the F $_{1}$ generation, it is evident that the parents were heterozygous for that particular allele. Example: Tt (Tall) and Tt (Tall) plants when crossed gives --> TT, Tt and tt genotypes. Here, recessive character was also exhibited due to the hetrozygosity in parents.

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