Q. In which one of the following, complementary gene interaction rato of 9 : 7 is observed?
A) Fruit shape in Shepherd’s purse
B) Coat colour in mouse
C) Feather colour in fowl
D) Flower colour in pea
Explanation
W Bateson and R C Punnett observed complementary gene interaction for flower colour In .)ݏݑݐܽݎ݀ ݏݑݎݕℎݐܽܮ) pea sweet in complementary interaction, two separate pairs of genes interact to produce the phenotype in such a way that neither of the dominant genes is expressive unless the other one is present. In F2 generation, complementary genes produce a ratio of 9 : 7.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.