Mitosis can occur in a diploid nucleus, that is, one containing pairs of chromosomes representing each of its parents or in a haploid one containing a single set of chromosomes. Meiosis, often called reduction division, yields four daughter nuclei with the number of chromosomes reduced to half the original number. The overall result is that one diploid nucleus becomes four haploid nuclei.
Aldebaran. n. 1. (Astronomy) a binary star, one component of which is a red giant, the brightest star in the constellation Taurus.ldebaran. n. 1. (Astronomy) a binary star, one component of which is a red giant, the brightest star in the constellation Taurus.
Coltan in  Heavy Metal . Coltan is the colloquial African name for columbite-tantalite, a metallic ore used to produce the elements niobium and tantalum.The endoskeleton of advanced terminator machines are made using alloys derived from a half percentage of coltan to make them hardened to heat.T-600s were made of a titanium alloy endoskeleton, but were vulnerable to heat. Coltan alloys have a much higher melting point, making it a superior alloy for endoskeletons.he endoskeleton of advanced terminator machines are made using alloys derived from a half percentage of coltan to make them hardened to heat. T-600s were made of a titanium alloy endoskeleton, but were vulnerable to heat. Coltan alloys have a much higher melting point, making it a superior alloy for endoskeletons.