核かく外がい遺い伝でん子しかくがいいでんしMeanings1nounplasmageneA technical term in genetics referring to a gene located outside the nucleus, such as in mitochondria or chloroplasts. Rarely used outside specialized contexts.核かく外がい遺い伝でん子しは、ミトコンドリアや葉よう緑りょく体たいに存そん在ざいする。