Question

Two varieties of snapdragons, one with red flower and other with white flowers were crossed. The result obtained in F2 generation are: 22 red, 52 pink, and 23 white flower plants. Now it is desired to ascertain these figures show that segregation occurs in the simple Mendelian ratio of 1:2:1

Answer 1

Answer:

This can be understood by the inheritance of flower color in (dog flower) - Snapdragon.

- wherein

The F1 had a phenotype that aid not resemble either of the two parents and was in between them.

In heritance of pink flower colour in Antirrhium is a example of incomplete dominance. This is a variation of dominance , wherien the dominant - recessive relationship is not a completely followed in a hetorozygote neither red nor white colour is developed. Instead F1 represent pink coloured flowers. In F2 generation , the red, pink and white colour flowers are formed in the ratio of 1 : 2 : 1 respectively.