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

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 ...

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 ...