noun
homologous chromosome
Technical term in genetics; refers to a pair of chromosomes that have the same gene sequence and structure, one inherited from each parent.
相同染色体は減数分裂の際に対合する。
Homologous chromosomes pair up during meiosis.
Compound of 相同 (homology) + 染色体 (chromosome). The exact derivation is uncertain; the term is a modern scientific coinage.