Question

A pea with while flower was flower was crossed to another pea which is also white flower plant when selfed the f2 generation produced purple and white in the ratio 9:7the rason foris that

Answer 1

Answer:

In some organisms, two genes present on separate loci, interact together and produce new phenotype, when they present alone, they produce their own phenotypes. This types of genes are called complementary genes. A pea plant with white flowers was crossed with another pea plant is also white flowered. The F1 plant is Selfed, in the F2 generation 9 plants with purple flowers and 7 plants with white flowers are formed. The reason in the plants in the plants with purple flower, both the genes are complementary with one another, so purple flower are formed, in the remaining 7 plants no complementarity exists between the genes, so white flowers are formed.

So, the correct option is ‘it is a complementary factor