(Fill in the blank) In comparing DNA and structural characteristics between plant species, the similarities that appear may indicate a between them. (Think of evolution)

Mutation

Explanation:

Mutations can be defined as changes in genetic material, which are the main source of existing genetic variation. For ensuring genetic variability, that is, ensuring that individuals have different DNA, mutations are considered an important point in the evolution of living beings.

It is through mutations that important adaptive characteristics emerge, in addition to essential characteristics remaining in species that are different but that have similarities.

These processes also guarantees the selection of species most adapted species.  Mutations can be beneficial, neutral or harmful (genetic diseases or genetic "failures") and, therefore, are not targeted, occurring at random.

equal distribution i think.