1)  population structure
二型花柱
1.
In this paper, its reproductive characteristics including the floral morphology, population structure, breeding system, pollination ecology and fruit-set patterns was observed and analyzed both in field and indoor.
该种具有典型的二型花柱现象。
2)  Type Ⅱ collagen
二型胶原
3)  small type II
小（二）型
4)  Alternative phenotypes
二型现象
5)  sexual dimorphism
性二型
1.
Comparison of the sexual dimorphism of brain structure between mandarin vole (Microtus mandarinus) and reed vole (M. fostis);
棕色田鼠和沼泽田鼠脑内部结构性二型的比较研究
2.
This species also exhibits a remarkable sexual dimorphism and the male is liable to be mistaken for a Centrotoscellus species.
尖三刺角蝉Ｔｈｉｃｅｎｔｒｕｓａｃｕｔｉｃｏｒｎｉｓ的雌雄均只有１０条染色体，性别决定为ＸＹ型，是角蝉科已知最为独特的核型特征，该种具有明显的性二型现象，由于雄性不具有上肩角，极易被误认为是秃角蝉属ＣｅｎｔｒｏｔｏｓｃｅｌｌｕｓＦｕｎｋｈｏｕｓｅｒ的种类。
6)  dimorphic cotyledon
二型子叶
1.
Based on studies of rice embryo development we confirmed that rice embryo has two dimorphic cotyledons rather than just one cotyledon.
作者从稻胚发育的研究中确认稻胚具二型子叶 ,并非单子叶。
参考词条
补充资料：花柱
雌蕊的一部分，在子房和柱头之间，形状像细长的管。（图见‘花’）
说明：补充资料仅用于学习参考，请勿用于其它任何用途。