Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consistent with ________.
A) sex -linked inheritance with 30 percent crossing over
B) linkage with 50 percent crossing over
C) 100 percent recombination
D) linkage with approximately 33 map units between the two gene loci
E) independent assortment

Question

Quizplus · Accepted Answer

The observed offspring ratios suggest linkage with approximately 33 map units between the two gene loci, as the recombinant types (Aabb and aaBb) are less frequent than the parental types (AaBb and aabb), indicating partial linkage rather than independent assortment.

Assume That a Cross Is Made Between AaBb and Aabb