MODEL OF DRAP & EVOLUTION MODEL

Description

The XC-701 DNA Model (often referred to in catalogs as the “DRAP” or DNA Assembly Model) is an essential 3D teaching aid designed to simplify the complexities of molecular biology. This model allows students to visualize the double helix structure and understand the base-pairing rules that govern genetic inheritance.

Key Product Features

• 3D Double Helix Representation: Accurately depicts the twisting ladder structure of deoxyribonucleic acid, including major and minor grooves.

• Color-Coded Base Pairs: Features vibrant, distinct colors for the four nitrogenous bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C), clearly demonstrating complementary pairing.

• Molecular Components: Includes representations of the phosphate-sugar backbone, showing the 5′ to 3′ directionality of the strands.

• Durable PVC Material: High-quality, non-toxic plastic components designed for repeated assembly and disassembly in a classroom setting.

• Sturdy Display Stand: Mounted on a stable circular base with a central support rod for 360-degree observation.

Technical Specifications

Based on the XC series of educational models commonly manufactured in China, here are the professional SEO-friendly product descriptions for the DNA (DRAP) and Evolution models.

XC-701 DNA Structure Model – Double Helix Educational Kit

The XC-701 DNA Model (often referred to in catalogs as the “DRAP” or DNA Assembly Model) is an essential 3D teaching aid designed to simplify the complexities of molecular biology. This model allows students to visualize the double helix structure and understand the base-pairing rules that govern genetic inheritance.

Key Product Features

• 3D Double Helix Representation: Accurately depicts the twisting ladder structure of deoxyribonucleic acid, including major and minor grooves.

• Color-Coded Base Pairs: Features vibrant, distinct colors for the four nitrogenous bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C), clearly demonstrating complementary pairing.

• Molecular Components: Includes representations of the phosphate-sugar backbone, showing the 5′ to 3′ directionality of the strands.

• Durable PVC Material: High-quality, non-toxic plastic components designed for repeated assembly and disassembly in a classroom setting.

• Sturdy Display Stand: Mounted on a stable circular base with a central support rod for 360-degree observation.

Technical Specifications

XC-135 Human Evolution Sequence Model – Origins of Man

The XC-135 Evolution Model provides a compelling visual timeline of human development. This set of figures illustrates the physical transformations from early hominids to modern Homo sapiens, making it the perfect centerpiece for anthropology and biology lessons.

Key Product Features

• Five-Stage Sequence: Typically features five distinct stages of evolution, including Australopithecus afarensis, Homo erectus, Homo neanderthalensis, and Homo sapiens.

• Comparative Anatomy: Each figure demonstrates the progressive changes in posture, cranial capacity, jaw structure, and tool usage.

• Detailed Craftsmanship: Hand-painted with realistic textures to highlight differences in muscle definition, skin tone, and skeletal alignment.

• Handheld Scale: Each figure is designed at a desktop scale, allowing for easy side-by-side comparison and tactile learning.

• Educational Context: Helps students grasp the concept of “descent with modification” and the environmental adaptations that shaped humanity.

Technical Specifications

Ideal For:

• Science Labs: A foundational tool for teaching the Theory of Evolution and genetics.

• Museum Displays: Professional-grade quality suitable for public educational exhibits.

• Gift for Educators: A thoughtful and functional gift for biology teachers and science enthusiasts.