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I will pay for the following essay Mendelin and Cellular Genetics. The essay is to be 2 pages with three to five sources, with in-text citations and a reference page.In the next phase i.e., the metaph
I will pay for the following essay Mendelin and Cellular Genetics. The essay is to be 2 pages with three to five sources, with in-text citations and a reference page.
In the next phase i.e., the metaphase, the chromosomes, in the form of chromatids held together by a centromere, migrate to the equator and line up in a "plate" between the two centrosomes. In the anaphase, the centrosomes separate, the spindles shorten and pull the chromosomes to the two opposite poles. The last phase that is, the telophase, is the physical division of the cell into daughter cells brought about by the re-formation of the nuclei and nuclear envelope around the chromosomes at the two poles. The two daughter cells formed are split apart by the process of cytokinesis.
The process, by which the germ cells or gametes are generated is called meiosis. Meiosis is made up of two subsequent processes, both of which resemble mitosis. During the formation of gametes, the number of chromosomes is reduced by half, and the number gets restored during fertilization. Unlike mitosis which produces two diploid cells, meiosis produces four haploid cells. Meiosis occurs as two nuclear divisions, meiosis I and II. Meiosis I halves the ploidy level while meiosis II divides the chromosomes similar to mitosis. Meiosis also occurs in several stages.
DNA bases pair up with each other, adenine (A) with thymine (T) and cytidine (C) with guanidine (G), to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule forming a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix. The double helix is like a ladder whose rungs are made up of the base pairs and the sides are formed by the sugar and phosphate molecules.
Chromosomes are thread-like structures but not visible in the cell’s nucleus—even under a microscope—until the cell starts dividing. During mitosis and meiosis, the DNA in the chromosomes becomes more tightly packed and becomes visible under a light microscope. .
