Question

Which one of the following groups shares the maximum number of common characters?

• A. Two genera of a family
• B. Two genera of a class
• C. Two genera of a species
• D. Two individuals of a species

Answer 1

The correct option is D Two individuals of a species

A species can be defined as a group of individuals that are able to mate and produce viable, fertile offspring. Members of the same species are similar both in their external appearance and their internal physiology. The closer the relationship between two organisms, the more similar they will be in these features. Some species can look very dissimilar, such as two very different breeds of dogs, but can still mate and produce viable offspring, which signifies that they belong to the same species. Some species may look very similar externally, but can be dissimilar enough in their genetic makeup that they cannot produce viable offspring and are, therefore, different species. Mutations can occur in any cell of the body, but if a change does not occur in a sperm or egg cell, it cannot be passed on to the organism's offspring. Members of genera of family, clade and genera of species do not share similar characters. Thus, option D is correct and other options are wrong.