X-chromosomes are a type of sex chromosome found in the cells of humans and many other organisms. Humans have 23 pairs of chromosomes in each cell, and one of these pairs determines biological sex. Females typically have two X-chromosomes (XX), while males have one X and one Y chromosome (XY). The X-chromosome carries many genes that influence various traits and development. Understanding X-chromosomes is important for learning about inheritance, sex-linked characteristics, and some genetic disorders.
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