In a plant, the red colour of the flower is dominant over white. A cross was made between a plant containing red flower and other with white flower. The cross yielded 50% white-flowered plant and 50% red flowered plant. The genotype of the parent with the red flower is:

Cannot be determined

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Can be homozygous or heterozygous

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Homozygous

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Heterozygous

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Solution

The correct option is D Heterozygous
Two possible genotypes of a plant with red flower are RR and Rr.

Thus, the genotype of the parent with the red flower is Rr.

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In a plant, the red colour of the flower is dominant over white. A cross was made between a plant containing red flower and other with white flower. The cross yielded 50% white-flowered plant and 50% red flowered plant. The genotype of the parent with the red flower is:

The correct option is D HeterozygousTwo possible genotypes of a plant with red flower are RR and Rr. Thus, the genotype of the parent with the red flower is Rr.

The correct option is D Heterozygous
Two possible genotypes of a plant with red flower are RR and Rr.

Thus, the genotype of the parent with the red flower is Rr.