Scientists were able to identify chromosomes under the microscope as early as the 19th century. But what did it take for them to figure out how important chromosomes really are? Aa Aa Aa The second ...

Genes are located on chromosomes. Chromosomes are in pairs and genes, or their alleles, are located on each of these pairs. When the cell divides in half, each chromosome ends up in a different cell.

Scientists first discovered chromosomes in the nineteenth century, when they were gazing at cells through light microscopes. But how did they figure out what chromosomes do? And how did they link ...