A variant in research refers to a modified form or version of something, such as a gene, protein, or disease, that differs from the standard or original form. Variants can arise due to mutations, genetic changes, environmental factors, or other sources, and they can influence various aspects of biology, physiology, and behavior. Studying variants is important in fields such as genetics, medicine, and evolutionary biology, as they can provide insight into the diversity and complexity of living organisms and their characteristics. Researchers often analyze variants to understand their effects on traits, susceptibility to diseases, and potential for genetic inheritance.