germ line

synonym: in immunology
https://doi.org/10.1351/goldbook.13171
Referring to genes in their unrearranged state rather than those rearranged for production of immunoglobulin (Ig) or T-cell receptor (TCR) molecules.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1169 [Terms] [Paper]