"1. What is Down Syndrome? Prompt: Clean vector illustration of a chromosome 21 with a duplicate strand, labeled “Trisomy 21”, surrounded by DNA strands, minimal flat design, infographic style, soft blue and white palette. 2. How Does It Happen? Prompt: Meiosis process infographic showing nondisjunction error, chromosomes misaligning during cell division, clean educational vector, flat icons style, pastel background."