1.

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»

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



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