Interactive Karyotype Activity 90%

Developmental delays, distinct facial features, heart defects. XXY (An extra X chromosome in males) Tall stature, reduced fertility, lower testosterone levels. Turner Syndrome Monosomy X (A single X chromosome in females) Short stature, webbed neck, lack of ovarian development. Edwards Syndrome Trisomy 18 (Three copies of chromosome 18)

While high school activities usually focus on Down syndrome, advanced interactive karyotype activities for university students include more complex structural abnormalities: Interactive Karyotype Activity

: Before beginning the activity, ensure students understand basic genetic concepts such as homologous pairs, diploid vs. haploid, and the process of meiosis. A brief review of chromosome structure (chromatids, centromeres, genes, alleles) will make the karyotype activity much more meaningful. Edwards Syndrome Trisomy 18 (Three copies of chromosome

: An extra X chromosome in males (XXY). Edward’s Syndrome : Trisomy 18. Popular Activity Formats : An extra X chromosome in males (XXY)

As genomic technology advances, educational tools are shifting from basic karyotyping to interactive simulations and virtual Next-Generation Sequencing (NGS) labs. However, the interactive karyotype activity remains the foundational gateway for biology students. It visualizes the physical reality of DNA, bridges the gap between cellular division and clinical medicine, and builds the critical thinking skills needed for the next generation of genetic discoveries.

// KARYOTYPE CHECK & DIAGNOSTIC ENGINE function checkAndDiagnose() { let autosomeComplete = true; let autosomeCounts = {}; for (let i=1; i<=22; i++) const sexSlot = karyoSlots[23] || []; let sexDiagnosis = ""; let isNormal = false; let syndromeText = ""; const sexTypesList = sexSlot.map(id => chromosomes.find(c => c.id === id)?.type); if (sexSlot.length === 2) { if (sexTypesList.includes('X') && sexTypesList.includes('Y')) sexDiagnosis = "46,XY"; isNormal = autosomeComplete; syndromeText = "Normal Male"; else if (sexTypesList[0] === 'X' && sexTypesList[1] === 'X') sexDiagnosis = "46,XX"; isNormal = autosomeComplete; syndromeText = "Normal Female"; else if (sexTypesList.includes('X') && sexTypesList.includes('X') && sexTypesList.length ===2) sexDiagnosis = "46,XX"; isNormal = autosomeComplete; syndromeText = "Normal Female"; else if (sexTypesList.includes('X') && sexTypesList.includes('Y') === false && sexTypesList[0]==='X') {} else sexDiagnosis = `Abnormal sex ($sexTypesList.join(','))`; syndromeText = "Sex chromosome aneuploidy suspected"; isNormal = false; } else if (sexSlot.length === 1) if (sexTypesList[0] === 'X') sexDiagnosis = "45,X"; syndromeText = "Turner syndrome (Monosomy X)"; isNormal = false; else if (sexTypesList[0] === 'Y') sexDiagnosis = "47,XYY? Incomplete Y only? Incomplete set"; syndromeText = "Abnormal karyotype"; isNormal = false; else sexDiagnosis = "Missing sex chromosome"; syndromeText = "Incomplete sample"; isNormal = false; else sexDiagnosis = "Sex chromosome pair missing"; syndromeText = "Incomplete karyotype"; isNormal = false;