The phrase "are based on characteristics" is correct and usable in written English.
It can be used when discussing the foundation or reasoning behind something, indicating that it relies on specific traits or features.
Example: "The results of the study are based on characteristics such as age, gender, and socioeconomic status."
Alternatives: "are grounded in traits" or "are determined by features."
Represented largely by wing impressions, the fossil record is so incomplete that most systems of classification and interpretations of relationships are based on characteristics of recent forms, chiefly their morphology.
The explanations of particular events in evolutionary history are based on characteristics of organisms living today and in the past.
The methods presented in the paper are based on characteristics of eigensolution of the corresponding Hamiltonian system and Riccati differential equation.
This is due in part to definitions of Strepsirrhini and Haplorhini that are based on characteristics of the rhinarium that do not preserve in fossils [68], [69], [70], and it is also due to Gregory's [65] inclusion of notharctines and adapines in strepsirrhine Lemuroidea.
Some of these policies are based on characteristics of the individuals, such as age, while others rely on connection degree and type.
While these conditions are based on characteristics of real data (Stranger et al. 2012), they still influence the extent of the SNP's contribution to the gene regulatory system, and different samplers might respond differently to the distinct amounts of genetic influence.
Since these schemes are based on characteristic tracing and interpolation, they do not readily lend themselves to a fully conservative implementation.
For some of the occupations, it is not necessarily clear where they belong in a hierarchical system, especially in one that is based on characteristics of employment relations.
Predictions were based on characteristics that were collected in a large clinical trial and that are regularly readily available on admission to a neurological or neurosurgical unit.
Predictions were based on characteristics that are regularly readily available on admission to a neurological or neurosurgical unit and which were collected in a large clinical trial.
