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Specification
AgeRangeDescription : adult
Brand : Srliya
BulletPoint1 : DNA STRUCTURE: DNA molecules are formed by two polynuclear glycine chains spiraling around the same axes with the right hand helix. The main chain is an alternating arrangement of (P) and deoxyribose (D).
BulletPoint2 : REVERSE PARALLELISM: Two polynuclear glycine 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.
BulletPoint3 : STRUCTURAL DETAILS: The main chain composed of monosaccharide is located on the outer side of the helix, the base is located on the inner side, the deoxyribose is parallel to the helix axes, and the base is basically perpendicular to the axes.
BulletPoint4 : 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.
BulletPoint5 : MAJOR AND GROOVE: The of the double helix has two obvious concave grooves, one large and deep, and the other small and shallow. They are called the major and groove, respectively.
Color : One Color
CpsiaCautionaryStatement : no_warning_applicable
EducationalObjective1 : STEM
EducationalObjective2 : Concept Development Skills
ExternallyAssignedProductIdentifier : 8460531096460
ExternallyAssignedProductIdentifier1 : 764227317210
ExternallyAssignedProductIdentifier2 : 0764227317210
IncludedComponents : No
ItemName : DNA Structure Model Plastic Educational DNA Double Helix Model Teaching Equipment
ItemPackageDimensions_Height : 24 centimeters
ItemPackageDimensions_Length : 65 centimeters
ItemPackageDimensions_Width : 25 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : animal-anatomical-models
Manufacturer : Srliya
ManufacturerMinimumAge : 48
Material : Plastic
ModelName : Srliyavgi046c1xp
ModelNumber : Srliyavgi046c1xp
NumberOfBoxes : 1
NumberOfItems : 1
PackageLevel : unit
PartNumber : Srliyavgi046c1xp
ProductDescription : Specification:
Item Type: DNA Structure Model
Material: Plastic
Model Structure:
1. Double helix with a diameter of 10A;
2. Pitch 18A, distance between adjacent base pairs 1.8A;
3. The difference in direction of adjacent bases is 360;
4. 6 pairs of base pairs per pitch;
5. The hydrogen length is 1.0-2.5A.
Application: The product meets the national standard JY35 DNA Structure Model Technical Conditions produced by the Ministry of Education, and is suitable for teaching biology as a basic course in ordinary high schools and universities.

Package List:
1 x Model
ProductSiteLaunchDate : 2024-12-05T01:29:56.836Z
Size : One Size
SupplierDeclaredDgHzRegulation : not_applicable
TargetAudienceKeyword : unisex-children
Theme : Biology
UnitCount : 1
UnspscCode : 60141000