Human Chromosome 21
Human Chromosome 21 is one of the 23 pairs of chromosomes in humans. It is the smallest human chromosome, containing about 48 million base pairs and approximately 200 genes. This chromosome plays a crucial role in various biological processes and is essential for normal development.
An important aspect of Chromosome 21 is its association with Down syndrome, a genetic condition caused by the presence of an extra copy of this chromosome, leading to developmental and intellectual challenges. Research on Chromosome 21 helps scientists understand genetic disorders and improve medical treatments.