Question

Mendel' s law of independent assortment does not hold true for the genes that are located closely on ______________________.

• A. Same chrormosome
• B. Non-homologous chromosomes
• C. X-chromosome
• D. Autosomes

Answer 1

The correct option is A Same chrormosome

As per linkage experiments carried out by Morgan, the two linked genes do not always segregate independently of each other and $F_2$ ratio deviated very significantly from 9:3:3:1 ratio (expected when two genes are independent). Hence, if linkage was known at the time of Mendel, he would riot have been able to explain law of independent assortment.