Table of contentsMitosis IItosis IIMitosis IIIBriefly describe all the phases of the cell cycle and explain what happens in each.a) Interphase: G1 phase, S phase, G2 phaseG1 - size The cells multiply, synthesize proteins and produce RNA. DNA synthesis is also improved. S phase – DNA replication takes place, which produces the two similar daughter cells. G2- this is the gap between mitosis and DNA synthesis where cells grow and produce proteins. It determines whether the cell can proceed to mitosis (CELL Alive). Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”?Get the original essayb) Phase MProtein production and cell growth are complete at this stage and the available energy is used in division to produce similar daughter cells. (Live CELL).Which phase is the shortest?M phase is the shortest (Live CELL).What is G0 (Gap 0/Resting Phase)?G0 is the stage where the cell leaves the cycle and stops dividing. If a cell has not entered the resting phase, would this pose a problem? For what ? This would be a problem because the developmental stage would be affected and division would be stopped (living CELL). Some cells in the body stay in 0 space and rarely, if ever, divide. Name 2 types of cells in the human body that do not divide. Brain cells and nerve cells. Other cell types in the body divide frequently (rapid cycling). Name 1 type of body tissue that divides often. Why does this type of tissue have to divide frequently? Cells in the intestinal wall divide often. It divides frequently to provide new surfaces, as these are frequently worn away during digestion. Mitosis IExplain the purpose of mitosis in the human body. Mitosis helps in the replication, growth and repair of somatic cells in the body. Briefly describe each phase of mitosis. . (Basic Genetics).Interphase- at this point the DNA has replicated and they are in a chromatin. The nuclear membrane is present and protects the DNA molecules from mutation. Prophase – here the DNA molecules shorten and coil to form chromosomes. The nuclear membrane is not visible at this stage and the spindles move toward opposite cell poles. Metaphase – at this stage the spindles are attached to the centromeres of the chromosomes and the chromosomes are aligned on the equatorial plate. Anaphase – the spindle fibers become short and the centromere divides and the resulting chromatids are pulled behind the centromeres. Telophase – chromosomes move towards the poles and disintegration of spindle fibers takes place. Describe and distinguish replicated chromosomes and homologous chromosomes. Homologous chromosomes are those that are in pairs and have a diploid chromosome number (2n), while replicated chromosomes are those that have undergone DNA replication and they have two sister chromatids. How many pairs of homologous chromosomes are found in the nucleus of a human somatic tissue cell? How many homologous pairs are found in a human gamete? The human gamete has 23 pairs and the human somatic cell has 23 pairs. Anaphase is unique in terms of chromosome number. Explain. Anaphase has twice as many chromosomes as previous phases. Is a cell in anaphase diploid? Explain.Mitosis IIWhat is the purpose of meiosis in the human body?Production of gametes in the human body.Briefly describe the phases of meiosis I.Interphase I- at this stage the DNA has replicated and they are in a chromatin. There.