Please find the question in the picture.

Asked by sanchitdora5 | 30th Mar, 2020, 10:10: PM

Expert Answer:

  • Incomplete dominance is the phenomenon where none of the two contrasting alleles or factors isdominant.
  • The expression of the character in a hybrid or F1 individual is intermediate or a fine mixture of the expression of the two factors.
  • The phenotypic ratio of offspring in the F2 generation is 1:2:1 which is similar to the genotypic ratio.
  • In Mirabilis jalapa (Four o’clock plant), there are two types of flowers, red and white.
  • When the two types of plants are crossed, the hybrids of the F1 generation bear pink flowers.
  • When the Fhybrids are selfed, we obtain three types of plants in the Fgeneration—one with red flowers, one with pink flowers and one with white flowers in the ratio of 1:2:1.
  • The appearance of pink colour is either due to the mixing of red and white colours or the expression of a single gene for a pigmented flower which produces only pink colour.

Answered by Sheetal Kolte | 31st Mar, 2020, 11:36: AM