BlueZ is a Bluetooth stack for Linux kernel-based family of operating systems. Its goal is to program an implementation of the Bluetooth wireless standards specifications for Linux. As of 2006, the BlueZ stack supports all core Bluetooth protocols and layers.
Segregation is the separation of homologous pairs of chromosomes during meiosis. Meiosis reduces chromosome number by half from diploid (2n) to haploid (n) in the production of gametes for recombination through fertilization that restores diploid (2n) chromosome number in sexual reproduction.
Symmetry in biology. Symmetry in biology is the balanced distribution of duplicate body parts or shapes within the body of an organism. In nature and biology, symmetry is always approximate: for example plant leaves, while considered symmetrical, rarely match up exactly when folded in half. Symmetry creates a class of patterns in nature, where the near-repetition of the pattern element is by reflection or rotation.