Flemming divided mitosis into two broad parts: a progressive phase, during which the chromosomes condensed and aligned at the center of the spindle, and a regressive phase, during which the sister ...

Wolf-Hirschhorn is a rare genetic disorder that your baby gets when part of chromosome 4 is deleted. It happens when cells divide abnormally during reproduction. When any part of a chromosome is ...

The most important part of the Y chromosome is the master sex gene called SRY, which triggers a fetus' development as a biological male. "The X and Y were once upon a time just an ordinary pair of ...

For instance, the telomeres on chromosome 1's short arm (1p) differed by more than six kilobases between its two parts, 1pM and 1pP — the maternal (M) and paternal (P) chromosomes, respectively.