Biology
rngina10
45

Flower color in a particular plant species is determined by one gene. The alleles of that gene can code for either red flowers or blue flowers. When two such plants are crossed, however, some of the offspring produce purple flowers. What is the genotype of the plants with purple flowers? Question options: An allele for red flowers on both homologous chromosomes. Two alleles for red flowers on one homologous chromosome and two alleles for blue flowers on the other An allele for red flowers on one homologous chromosome and an allele for blue flowers on the other An alleles for purple flowers on both homologous chromosomes

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(1) Answers
coolkid214

An allele for red flowers on one homologous chromosome and an allele for blue flowers on the other This is a case of incomplete dominance where none of the two traits are completely dominant or completely recessive, such that both are present in the phenotype. The presence of both traits leads to a creation of third phenotype which contains both alleles of the gene, red and blue. Hence, the above stated option is correct

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