wieviel gene hat ein mensch — what does this mean exactly?

The question 'How many genes does a human have?' asks for the count of genes in the human genome. The answer is not straightforward: humans have approximately 20,000–25,000 protein-coding genes, but including non-coding RNA genes, pseudogenes, and regulatory elements, the total is much higher (estimates exceed 60,000). The exact number depends on the definition of a gene. This question often reflects a misunderstanding: more genes do not equal more complexity. Humans have fewer genes than some plants or amphibians. In practice, consumer DNA tests like MyBody-X focus on specific gene variants (SNPs), not the total gene count. Their utility is limited: they indicate predispositions, not diagnoses. The scientific consensus is that gene number alone tells little about health or abilities; gene regulation, environment, and lifestyle matter more. The question is valid, but the answer requires nuance.