answer: Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. ... He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene.
relating to or determined by the origin, development, or causal antecedents of something. 2a : of, relating to, or involving genetics. b : of, relating to, caused by, or controlled by genes a genetic disease genetic variation. -genetic.