is associated with an abnormal phenotype (the central two are normal chromosome 15). d) The inv dup (22) (right) is associated with the cat eye syndrome.

Why are the human sex chromosomes called “X” and “Y,” while the other 22 chromosomes are identified only by numbers? The answer begins in the late 1800s, when insect gonad cells, whose large ...

New research at the UO reveals that they have been using one that has existed for 480 million years. The octopus has just ...

Researchers at Linköping University in Sweden made an unexpected discovery while investigating genetically unique women.

In total, most human cells contain 46 chromosomes with 22 pairs of autosomes, or non-sex chromosomes, and two sex-determining chromosomes. The sex chromosomes in humans are called X and Y.

Unsurprisingly, the Neanderthal genome was very similar to ours, containing about 20,000 genes bundled into 23 chromosomes. Like us, they had two copies of 22 of those chromosomes (one from each ...