A student encounters a plant bearing small, purple flowers in the wild. The size of the flowers and the purple color are determined by two separate genes. The genes for both small size (S) and purple color (P) are dominant to large size (s) and white color (p), respectively. The student wants to determine the genotype of the newly isolated plant. Crossing to which of these plants would provide the most information in one generation?
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Answer: Crossing the plant bearing small purple flowers with the plant bearing large white flowers would provide the most information in one generation.
Explanation: Dominant alleles will override the expression of recessive alleles. Individuals that show the recessive phenotype are known to have a homozygous recessive genotype. Individuals that show the dominant phenotype, however, may either be homozygous dominant or heterozygous. Hence pure recessive condition is best for doing a test cross.
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Answer: sspp
Explanation:
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