Dna Model, Dna Structure Model Plastic Double with 5 to 3 Chains Major and Groove for Biology Teaching, Dna & Rna Extraction Kits

$167.99

This DNA model provides a hands-on, visual aid for teaching and learning biological concepts of genetics and molecular structure.

Dna Model, Dna Structure Model Plastic Double with 5 to 3 Chains Major and Groove for Biology Teaching, Dna & Rna Extraction Kits
Dna Model, Dna Structure Model Plastic Double with 5 to 3 Chains Major and Groove for Biology Teaching, Dna & Rna Extraction Kits
$167.99

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Features

  • MAJOR AND GROOVE: The appearance of the double has two obvious concave grooves, one large and deep, and the other small and shallow. They are called the major and groove, respectively.
  • REVERSE PARALLELISM: Two polynuclear chains are reverse parallel, with one strand running 5 to 3 and the other strand running 3 to 5 when viewed from one main direction. On the model, it can be seen that there are 5 to 3 chains The oxygen (0) of the deoxyribose on the top is facing upwards, while the other one is facing downwards. (P) is also in the opposite direction.
  • BASE PAIRING: The bases on two chains form base pairs through oxygen , and the complementary relationship between base pairs is A-T, G-C, and A-T with three pairs of hydrogen . The red casing on the model represents hydrogen bonding.
  • DNA STRUCTURE: DNA molecules are formed by two polynuclear chains spiraling around the same axes with the right hand . The main chain is an alternating arrangement of (P) and deoxyribose (D).
  • STRUCTURAL DETAILS: The main chain composed of monosaccharide is located on the outer side of the , the base is located on the inner side, the deoxyribose is parallel to the axes, and the base is basically perpendicular to the axes.

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