Lab Report 7.docx - Lab Report 7 Title: Chromosomes – In...

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Lab Report 7Title:Chromosomes – In Cell Division and The DNA Which Forms ItObjective:To study the stages of mitosis and meiosis, identifying the karyotype of an individual andextracting and observing DNA from fresh tissue.Introduction:According to the cell theory, all cells are derived from pre-existing cells. Thus, cells mustundergo reproduction to produce new cells. Eukaryotic cell division carry out division thatinvolves the nucleus and cytoplasm for reproduction. Mitosis and meiosis are the two typesof nuclear division. Mitosis is a nuclear division mechanism that maintains the chromosomenumber. It is a type of cell division in which one mother cell divides to produce two newdaughter cells that are genetically identical to itself. Mitosis is the part of division process inwhich the DNA of the cell’s nucleus is split into two equal sets of chromosomes. Mitosisallows old, worn-out cells to be replaced by new cells (Alberts, Johnson & Lewis a,2002).On the other side, meiosis is a nuclear division mechanism that halves the chromosomenumber. Meiosis occurs for the production of gametes, the sperm cell or egg cell. Thedaughter cells has exactly half as many chromosomes as the mother cell which is from adiploid cell to a haploid cell. During fertilization, the two haploid cell, sperm cell and egg cell

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Term
Fall
Professor
NoProfessor
Tags
DNA, Mitosis, Alberts

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