Question

Mendel could not find recombination and crossing over as

• A. Traits he chose were either present on different chromosomes or were far apart
• B. Traits chosen by him were not influenced by genes
• C. He did not have a high power microscope
• D. He selected only pure types.

Answer 1

The correct option is A Traits he chose were either present on different chromosomes or were far apart

When a cross is made between two individuals different from each other in two or more characters, then the inheritance of one character is independent of the inheritance of another character. It is called Law of independent assortment. This is correct if the genes are present on two different chromosomes. But if the genes are present on the same chromosomes, they may or may not show independent assortment, i.e. Linkage. Mendel could not find recombination and crossing over because of the presence of all genes present on different chromosomes.

So, the correct option is ‘Traits he chose were either present on different chromosomes or were far part.