1. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
Usage: biology

Examples

• Humans have 23 pairs of chromosomes in each cell.
• The X and Y chromosomes determine biological sex.
• Scientists studied the chromosome structure under a microscope.
• Down syndrome is caused by an extra copy of chromosome 21.
• Each chromosome contains hundreds or thousands of genes.
• The chromosome carries DNA from parent to offspring.
• Researchers mapped the entire human chromosome sequence.