(+92) 320 0038000
The Different Phases of Meiosis Model (Blister/Relief Design) by IBEX SCIENCES is a three-dimensional biological teaching tool engineered for high school biology classes, university genetics courses, and medical training labs. [1, 2, 3]
Using a comprehensive blister/relief format permanently fixed to a sturdy backboard, this model breaks down the highly complex process of meiotic cell division into sequentially arranged, clear visual stages. It is an essential resource for illustrating how a single diploid cell divides twice to yield four genetically diverse haploid gametes (sperm or egg cells). [1, 2, 3, 4, 5]
Chronological Stages Featured on the Relief Board
The model traditionally depicts a multi-stage sequence (often 10 distinct cell cross-sections) using a typical mammalian or animal cell template to simplify tracking: [1, 2, 3]
1. Meiosis I (Reduction Division)
This section of the relief illustrates how homologous chromosome pairs align, interact, and separate: [1, 2]
- Interphase: Shows the cell in its preparatory stage with replicated chromatin network and a distinct nuclear membrane. [1, 2]
- Prophase I (Sub-Phases): The most detailed section of the model, clearly isolating key chromosomal events like synapsis (pairing of maternal and paternal chromosomes) and crossing over (chromosomal segment exchange). Specialized subsections trace the timeline through the Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis changes. [1, 2, 3, 4]
- Metaphase I: Illustrates the spindle fibers pulling the paired homologous chromosomes as they align side-by-side along the cellular equator. [1, 2]
- Anaphase I: Shows whole chromosomes being drawn toward opposing cellular poles while their sister chromatids remain intact. [1, 2]
- Telophase I & Cytokinesis I: Displays the pinching of the cell membrane into two individual, non-identical haploid intermediate cells. [1, 2]
2. Meiosis II (Equational Division)
Without an intermediate step of DNA replication, the model shifts into the second round of division, which closely mirrors standard mitosis: [1, 2]
- Prophase II & Metaphase II: Shows single, whole chromosomes condensing inside the twin cells and aligning end-to-end along the equator. [1, 2]
- Anaphase II: Visually demonstrates the crucial moment where sister chromatids are chemically split at the centromere and pulled apart as individual chromosomes. [1, 2]
- Telophase II & Cytokinesis II: The final step showing the formation of four completely distinct nuclei, concluding with four genetically unique haploid gamete cells. [1, 2]
Manufacturing and Quality Features
- Resilient PVC Polymers: Crafted from high-density, impact-resistant polyvinyl chloride (PVC) plastic, which prevents cracking or structural breakdown under regular student handling.
- AZAN-Inspired Color Coding: Chromosomes, centromeres, and meiotic spindle fibers are hand-painted using high-contrast, educational pigments. Maternal and paternal traits are distinctly colored (typically bright pink and blue) to help students easily track independent assortment and recombinant DNA shifts.
- Pre-Numbered Mapping System: Key components (such as centrioles, chiasmata, and chromatids) are physically stamped with numeric keys that align with a reference guide card for independent study and laboratory testing. [1, 2, 3, 4, 5, 6]
Primary Classroom Applications
- Genetics & Cytology Curriculum: Solves the challenge of explaining microscopic, invisible chromosome behaviors by presenting a rigid, hands-on layout.
- Interactive Laboratory Examinations: Ideal for practical lab tests where instructors can cover the key index and ask students to name the exact cellular phase or structural event.
Reviews
There are no reviews yet.