PATHOLOGY

Detailed explanation-1: -The cross between PP (purple flowers) and pp (white flowers) will produce pea plant having purple flowers having genotype Pp. P would be a dominant trait and p is a recessive trait, therefore plants having Pp genotype would be of purple colored. Therefore, the correct answer is option B.

Detailed explanation-2: -In other words, when a plant has two different alleles for flower color, the resulting phenotype is a mix of both colors. In this case, the purple flower trait is dominant to the white flower trait, meaning that if a plant has one of each allele (purple and white), the resulting flower color will be purple.

Detailed explanation-3: -Here, it has been given that purple flower color is dominant over the white flower color. Hence, the flower color of a plant that is heterozygous for this trait will be purple. Let P be the dominant allele and p be the recessive allele. i.e, 3/4 or 75% of the offsprings will have purple-colored flowers.

Detailed explanation-4: -In pea plants, purple flowers (P) are dominant over white (p) flowers. A cross between two pea plants produces offspring in which approximately 50% of the flowers are white and 50% are purple.

Detailed explanation-5: -For pea plants, the allele that determines purple flower color is dominant. A capital letter indicates a dominant allele. Two copies of a recessive allele are needed to see the corresponding phenotype. For pea flower color, the white-flower allele is recessive.