1. Tardigrade
  2. Question
  3. Biology
  4. Two dominant nonallelic genes are 50 map units apart. The linkage is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Two dominant nonallelic genes are 50 map units apart. The linkage is

AIPMTAIPMT 1993Principles of Inheritance and Variation

Solution:

Two dominant nonallelic 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.