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Chromosomes are the tightly packaged structures within a cell's nucleus that carry an organism's genetic information. They are made up of DNA (deoxyribonucleic acid) and proteins, and act like an instruction manual containing the blueprints for building and maintaining an organism.
Chromosomes are essential for life as we know it. They play a crucial role in:
Think of a chromosome as a long string of beads, where each bead represents a gene. The order of the beads (genes) is crucial. In humans, one pair of chromosomes determines sex (XX for females, XY for males). During reproduction, each parent contributes one chromosome from this pair to their offspring, influencing the child's sex.
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