What is discontinuous variation?

discontinuous variation (qualitative variation) Clearly defined differences in a characteristic that can be observed in a population. Characteristics that are determined by different alleles at a single locus show discontinuous variation, e.g. garden peas are either wrinkled or smooth. Compare continuous variation.

Discontinous variation, a characteristic of any species with only a limited number of possible values. Human blood group is an example of discontinuous variation.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

layer 3 is younger than layer 6.