The second stage of glycolysis is an isomerization reaction. In this reaction the glucose-6-phosphate is rearranged into fructose-6-phosphate by the enzyme glucose phosphate isomerase. This is a reversible reaction under normal conditions of the cell.
Kinetochore. A specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape; the centromere is difficult to sequence. Please contribute to this project, if you have more information about this term feel free to edit this page.
A replicated chromosome contains two identical double strand-DNA-molecules, the chromatids, that are joined at their centromere. Two single sets of pairs (daughter) chromosomes are formed by separation of the pair of chromatids during cell division (from anaphase on in mitosis and anaphase II in meiosis).Haploid is the term for a cell or an organism with only one set of chromosomes (n). The centromere (centron = middle, meros = part) is the region of the chromosome where the chromatids that arise from replication are held together. 2  The centromere hosts the kinetochore, a protein complex where the spindle filaments attach during mitosis or meiosis.