国产高清精品免费区-男女一进一出抽搐免费视频-中日韩一二三级黄色永久视频-日韩精品人妻一区二区免费视频-日本久久视频在线观看-99热这里只有精品88热-亚洲韩国黄色最新短视频一区-日韩伦理在线观看免费全集-国产av一区二区三区天堂

DNA Cruciforms

《英文msh詞典》DNA Cruciforms
[入口詞] DNA Cruciforms
[主題詞] DNA,Cruciform
[英文釋義] A cross-shaped DNA structure that can be observed under the electron microscope. It is formed by the incomplete exchange of strands between two double-stranded helices.

熱門查詢