eBay

Feature:

1. Ideal model for teaching, for students, for the education of biological class and lboratory research.
2. Vivid and detailed image, restore the details of DNA model, give the students deepest effect on the biology class.
3. Training color recognition ability, hand capacity and imagination, motivate potential.
4. Smooth of the model without burrs, without damage to children's hands, effectively develop children's intelligence.
5. It is a demonstration model of biology teaching in school and can also be used as reference for biology major in colleges and universities.

Specification:

Condition: 100% Brand New
Item Type: DNA Model
Material: PVC

Use:
1. The base is connected to deoxyribose with a thick rod.
2. Phosphoric acid is connected to deoxyribose by a thin rod.
3. The bases should be paired, A to T, C to G.
4. The ratio of bases in the molecular structure of DNA is (A+G) /(T+C)=1.
5. Polynucleotide double chains, rotating 360° around a major axle, can form a trapezoidal DNA double . Each contains 10 base pairs.

Package List:

10 x Connector Rod

20 x White Ball

20 x Blue Ball

40 x White Connector Rod

Note:

Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

1. Our listing price includes the value of goods,packaging cost,and export taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3. The duties are buyers' responsibility.Please check with your country's customs office determine what these additional costs will be prior to your purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.

1. Any questions, pls. contact us via ebay message or email us.We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails.

2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 " in very area
3. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy.

We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.

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On Apr 22, 2024 at 15:08:50 PDT, seller added the following information: