Question

Among lion, tiger and omestic cat, all the three have the same number of 38 chromosomes, yet they have different appearances. How do you account for such differences?

Answer 1

The characteristics of a species such as physical appearance, body functions and behavior are not only the outcome of chromosome number, but these depend on the genotype of every organism. That means the set of genes present in the organisms may vary and therefore lion, tiger and domestic cat have the same number of 38 chromosomes, their characteristics (like different appearances) are the result of the genes located on the chromosomes.