Cochranes 分子模型

NB.17

Use this cost-effective set to create an impressive display and teaching model. The built Minit Proview model shows the DNA double helix with up to 15 base pair layers and illustrates more than one turn of the double helix. Every atom is shown, colour-coded, with the correct bonding angles.

Groups can make up the subassemblies: Thymine-Adenine; Cytosine-Guanine, sugar rings and phosphate groups which can then be brought together to make the finished model. The model hangs between two plates from clear strings and comes with comprehensive instructions and a worksheet examining the structure of DNA and the mechanism of transcription.

Scale: 2 cm = 0.1 nanometer (1 A), Minit.
一种以12色塑料原子提供15种原子键配置的广泛模型系统。 碳原子以九种构型表示：线性、三角形(五种角度变化)、四面体、八面体、三角-双锥体。模型有两种尺寸：Orbit和Minit。备用原子中心和键合管可用于所有模型套件。

请在我们的网站sigma-aldrich.com上查看技术信息公告AL-183以获取相关列表

no. of atoms 880
no. of bonds> 1,200

Cochranes 0095

2 cm = 0.1 nanometer (1 Å), Minit
3 cm = 0.1 nanometer (1 Å), Orbit

1 m × 30 cm