Humans inherit one set of chromosomes from their mother and a second set from their father. In total, most human cells contain 46 chromosomes with 22 pairs of autosomes, or non-sex chromosomes ...

This condition is called triploidy. A fetus with this extra chromosome is said to be unable to survive. Here are the causes ...

However, after one term he changed to anatomy ... demonstrated that the egg cell and spermatozoan each contribute a set of chromosomes to the next generation of cells. In 1902, in his theory ...

We realized that when cells chose one of their two X chromosomes over the other, they also chose which set of genetic ...