How to say "gene" in Japanese

• ジーンCommon
  nounA katakana borrowing of English 'gene' with the same biological sense as 遺伝子, but in most contexts the native term is the default, so this is seldom the word you want.
• 遺伝子いでんしCommon
  nounThe ordinary word for a gene, the unit of heredity passed from parents to offspring; it is the term used in genetics, medicine and everyday talk, and the safe choice in any context.
  デオキシリボ核酸でおきしりぼかくさんは、遺伝子いでんしを作つくっている複雑ふくざつな化学かがく物質ぶっしつである。↗

  DNA is a complex chemical that makes up a gene.

For 'gene', the unit of heredity, 遺伝子 is the usual term in science, medicine and everyday contexts, while 「ジーン」 is the katakana borrowing of the English word and is seldom the one you need.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ジーンgene
• 遺伝子いでんしgene
• ゲンgene
• 遺伝因子いでんいんしgene