👉 In biology, a gene that is "isogenic" to another gene refers to a gene whose DNA sequence does not contain any mutations or deletions. This means that the genetic code for the gene being tested can be read in its entirety and produce identical results regardless of what other genes are present on the same chromosome. Isogeny refers to the concept of genes which have no variation, i.e., they do not contain any mutations or deletions. In biology, this is often used as a
