Q. In four $o$' clock plants, the gene for red flower colour $(R)$ is incompletely dominant over the gene for white flower colour $(r)$, hence the plants heterozygous for flower colour $(Rr)$ have pink flowers. What will be the ratio of offsprings in a cross between red flowers and pink flowers ?
Principles of Inheritance and Variation
Solution:
Incomplete dominance is reported in flowers of Mirabilis jalapa (Four $o$'clock). When red flowers are crossed with pink flowers, $50\%$ red flowers and $50\%$ pink flowers are obtained.
