oijhpl3916 oijhpl3916

04-12-2019
Biology

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In radishes, the gene that controls color exhibits incomplete dominance. Pure-breeding red radishes (RR) crossed with pure-breeding white radishes (WW) make purple radishes. What are the genotypic and phenotypic ratios when you cross a purple radish with a white radish?

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ArnimZola ArnimZola

05-12-2019

Answer:

Genotype ratio= 1 RW: 1 WW

Phenotype ratio= 1 purple: 1 white

Explanation:

According to the given information, the gene for the color of radishes exhibits incomplete dominance and the heterozygous genotype gives purple color to the radishes. The genotype of the heterozygous parent plant with purple radishes would be "RW". A cross between a purple radish (RW) and a white radish (WW) would give progeny in following ratio=

Genotype ratio= 1 RW: 1 WW

Phenotype ratio= 1 purple: 1 white

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