Class 12 NEET Biology Principles of Inheritance and Variation Questions Part 1

Two dominant non-allelic genes are 50 map units apart. The linkage is absent\/incomplete. Chromosome mapping is based on the fact that genes are linearly arranged in the chromosome and frequency of crossing over is directly proportional to the distance between two genes. Dominant genes show cis arrangement. At 50 map units cis is changed to trans and vice-versa hence no fixed linkage is present.