Xoloitzcuintli (Mexican Hairless Dog) The Xoloitzcuintle is a hairless dog which can be seen in toy, miniature and standard sizes. The country of origin is Mexico and it is commonly called with the name Xolo and is popular as Mexican hairless dog. The Xoloitzcuintle dog â Facts, Information and Characteristics The other names for this dog are Xoloitzcuintli, Xoloitzcuintliu, Xoloitzquintle and Xoloescuincle.
The nucleus, which is also the organelle that houses the genetic material in the cell, is responsible for directing the cell.
Most cells have: 1  A nucleus â controlling the activity of the cell. 2  Cytoplasm â where chemical reactions occur. 3  A cell membrane â to control the passage of substances in and out of the cell. 4  A Mitochondria which is where the energy is released from.ost cells have: 1  A nucleus â controlling the activity of the cell. 2  Cytoplasm â where chemical reactions occur. 3  A cell membrane â to control the passage of substances in and out of the cell. 4  A Mitochondria which is where the energy is released from.