Principles of Inheritance and Variation Question 114
114. Bateson used the terms coupling and repulsion for linkage and crossing over. Name the correct parent of coupling type alongwith its cross repulsion
[1990]
(a) Coupling AABB, aabb; Repulsion AABB, AAbb
(b) Coupling AAbb, aaBB; Repulsion AaBb, aabb
(c) Coupling aaBB, aabb; Repulsion AABB, aabb
(d) Coupling AABB, aabb : Repulsion AAbb, aaBB
Show Answer
Answer : d
Hints & Solution
(d) Bateson and Punnett (1906) discovered coupling and repulsion in sweet pea (Lathyrus odoratus).
