Question
Biology Question on Principles of Inheritance and Variation
Which of the following is an example of intergenic gene interaction?
A
Multiple alleles
B
Co-dominance
C
Incomplete dominance
D
Polygenes
Answer
Polygenes
Explanation
Solution
Intergenic interaction is shown by polygenes. This type of interaction occurs when two or more alleles of different genes present on same or different chromosomes interact to produce a cumulative effect. Multiple alleles, co-dominance and incomplete dominance are the examples of intragenic interactions.