Question

Independent assortment of genes does not take place when :

• A. All the above
  
• B. Genes are located on non-homologous chromosomes
• C. Genes are located on homologuous chromosomes
• D. Genes are linked and located on same chromosomes

Answer 1

The correct option is D Genes are linked and located on same chromosomes

Independent assortment of genes takes place only when they are located on separate non-homologous chromosomes. When two or more than two genes are located on same chromosome, independent assortment will not be possible.

Genes that are located on the same chromosome are not free to participate in independent assortment and are referred to as linked genes. These genes tend to be inherited together as a unit. These genes are present together on the parental homologs and are not separated during gamete formation.