The phrase "are a universal feature" is correct and usable in written English.
It can be used to describe something that is common or found everywhere across different contexts or cultures.
Example: "These patterns in human behavior are a universal feature of social interactions."
Alternatives: "are a common characteristic" or "are a widespread element."
As Austin Burt and Robert Trivers show, these selfish genes are a universal feature of life with pervasive effects, including numerous counter-adaptations.
Despite extensive knowledge about metabolic pathways, and the recognition that metabolism changes are a universal feature of cancer, fundamental questions remain with respect to how different cancers repurpose metabolism to acquire the materials needed for tumor growth.
The results demonstrate the role of noise in the emergence of critically slowed precursors in both space and time, and suggest that these early-warning signals are a universal feature of a neural system close to bifurcation.
The COPII components are essential for survival in yeast, and COPII vesicles are a universal feature in animal and plant cells, suggesting an evolutionarily conserved role in intracellular protein trafficking.
Similar to skin, inflammatory and proliferative gene expression signatures were identified suggesting that molecular subsets are a universal feature of SSc end-target organ pathology.
First, we have found that large hypomethylated blocks in cancer, which we first described in three colorectal cancers, are a universal feature of solid tumors.
Codon usage bias is a universal feature of eukaryotic and prokaryotic genomes and has been proposed to regulate translation efficiency, accuracy, and protein folding based on the assumption that codon usage affects translation dynamics.
High stress is a universal feature of burst-prone conditions.
That finding raised doubts about whether DLM really was a universal feature of human language.
