Question

crossing a pea plant with homozygous purpel flower amd pea palnt with homozygous white flower produces 50 plants with only purpel flowers on selfing of plants obtained after selfing of pea plant with homozygous white plant produce 470 plants with purpel flowers and 160 with white flowers explain the genetic mechanism accordingly for these results

Answer 1

Answer:

F2 generation 470 purple : 162 white. In F1 generation only purple flowers producing plants appeared. This means purple colour is dominant. Which doesn’t allow the white colour to express itself. In F2 generation, purple and white coloured flowers were produced in the ratio 3:1. Here the parental character of white again reappeared in about one fourth of the progeny. This occurs due to segregation of genes in the gamete formation. This represents the law of segregation and monohybrid ratio.

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