Question

Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be

Options

• double fertilisation

• self pollination

• cross fertilisation

• no fertilisation

Answer 1

self pollination

Explanation - 

In the given cross, pink flowering plants have two dissimilar forms of the gene controlling flower color. So, on selfing of two pink flowers (Rr), red (RR), pink (Rr), and white (rr) flowers are obtained in the ratio 1:2:1.