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.
Activated alumina is a filter media made by treating aluminum ore (bauxite) so that it becomes porous and highly adsorptive. It consists mainly of Al2O3. The production process includes calcination at 500Â°C, which at the same time removes all organic substances.ctivated alumina is capable of removing a variety of substances including excessive fluoride, arsenic and selenium. The fluoride removal process is based on adsorption on the surface of the activated alumina.