DNA Double Helix Model, 22 Segments
Product Code : SCL-PL-12342
DNA Double Helix Model, 22 Segments (SKU SCL-PL-12342) is a build-it-yourself molecular kit from which students assemble a right-handed DNA double helix out of colour-coded bases, sugars and phosphate groups. It supports genetics and molecular biology lessons from Class 10 to Class 12 and in B.Sc. and nursing courses. The kit comes from the Science Lab Supplies manufacturing unit in the HSIIDC Industrial Area, Saha, Ambala, India, which prices it directly for schools, colleges, tender contractors and distributors.
Specifications
Counts, colours and size of the helix kit are given row by row below. In short, it has 44 base pieces, 44 deoxyribose sugars and 44 phosphate groups, each type in its own colour, with a stand and instructions; it measures 44 x 11 x 11 cm and weighs 0.5 kg.
| Specification | Value |
|---|---|
| SKU | SCL-PL-12342 |
| Helix | Right-rotating double helix |
| Segments | 22 |
| Thymine | 11, orange |
| Adenine | 11, blue |
| Guanine | 11, green |
| Cytosine | 11, yellow |
| Deoxyribose | 44, red |
| Phosphate groups | 44, violet |
| Stand | Supplied |
| Instructions | Assembly instructions supplied |
| Weight | 0.5 kg |
| Dimensions | 44 x 11 x 11 cm |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the DNA Double Helix Model
Building the helix piece by piece makes the structure of DNA concrete: students join sugars and phosphates into two backbones, pair adenine with thymine and guanine with cytosine, and then separate the strands to act out replication. These biology models for schools make an abstract topic hands-on.
- Class 10 science: heredity and the idea of DNA as genetic material.
- Class 12 biology: molecular basis of inheritance, the double helix and complementary base pairing, linked to chromosomes seen on the Cell Division slide set of 9.
- Semi-conservative DNA replication, modelled by unzipping and rebuilding strands.
- B.Sc. botany, zoology and biotechnology, and nursing genetics: nucleotide structure revision, with cells shown on a screen through the Teaching Microscope and Prepared Slides.
Standard Scope of Supply
Each kit contains 11 each of thymine, adenine, guanine and cytosine, 44 deoxyribose pieces and 44 phosphate groups, together with a stand to display the finished helix and assembly instructions for building it. Optional extras, if any, are shown separately on the quotation.
Packing, MOQ and Lead Time
Order a single kit for demonstration or one per student group for a practical session; either way, the quotation lists packing, delivery time and price for that quantity. Molecular model kits for chemistry can be added to the same quotation.
Science Lab Supplies is a registered exporter under an Importer-Exporter Code and can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. How many DNA kits your groups need can be entered in the enquiry cart or written on the contact page, and genetics models in a tender are covered on the lab tender page.
Frequently Asked Questions
What colours represent each part of the DNA model?
Thymine is orange, adenine blue, guanine green and cytosine yellow; the deoxyribose sugars are red and the phosphate groups violet, so each nucleotide part can be named by colour.
Can the model show DNA replication?
Yes. The two strands can be pulled apart to show how each acts as a template for a new partner strand, so students can model replication and complementary base pairing.
Is Science Lab Supplies the manufacturer or a trader?
The helix kit is made by Science Lab Supplies at its manufacturing unit in Saha, Ambala, India; when you buy it, you deal with the factory, and the factory prepares your quotation.
Does the kit come with instructions and a stand?
Yes. Assembly instructions and a stand are included, so students can follow the steps to build the helix and the completed model can be displayed in the classroom after the lesson.
Related DNA and Molecular Models
These items extend the DNA lesson: fixed and assembly-type DNA models in other sizes, an activity set for two strands, and molecular model kits for chemistry bonding in teacher and student versions. Any combination can be quoted with the helix model for a biology or chemistry department.
- DNA Model on Base — board-mounted DNA segment showing replication, with a key card.
- DNA Structure Model, Plastic Assembly Kit — 12 base pair model in shaped plastic.
- DNA Structure Model, Simulation Kit — six kinds of pieces in a case for one or two students.
- DNA Activity Model — 48 bases and four strands for two DNA segments.
- Protein Structure Model — 68.5 cm tall double helix with 15 base pairs.
- Molecular Model Kits for Teachers — organic stereochemistry set of about 166 atoms.
- Molecular Model Kits for Students — about 74-atom stereochemistry set with dome hydrogens.
Browse the full Physics Lab range, the Human System Model range for further DNA models, or all physics lab equipment.
Last updated: 22 October 2026
