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Spindle Fibers Opposite Sides
534 wordsMitosis is the process of nuclear division in a living cell by which the chromosomes are exactly replicated, the two parts being separated are given to the daughter nuclei. In this process the two daughter cells receive chromosomes that are alike in composition and equal in the number of chromosomes as the parent cell. Mitosis consists of four main stages. Mitotic division occurs in somatic (body) cells. The stages are prophase, metaphase, anaphase, and telophase. In interphase the cell seems to...
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Spindle Fibers Asexual Reproduction
512 wordsCellular Reproduction is the process by which all living things produce new organisms similar or identical to themselves. This has to happen because if a species were not able to reproduce, that species would quickly become extinct. Reproduction consists of a basic pattern: the conversion by a parent organism of raw materials into offspring or cells that will later develop into offspring. The reproductive process, whether asexual or sexual always involves an exchange in hereditary material from ...
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Generation To Generation Gregor Mendel
1,312 wordsWhat is Genetics? Genetics is usually defined as the transmission of traits from one generation to the next. Although correct in its meaning, the definition is rather vague. Genetics not only involves the transmission of traits from generation to generation, but it also involves every biological occurrence in an organism. The history of genetics, beginning with the ideas of Aristotle up till the rediscovery of Mendel's work, has gone through many changes both in theory and discovery. The history...
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Germ Cells Daughter Cells
1,558 wordsMore than one celled organisms grow by way of mitosis and the cytoplasmic division of body cells. On the other hand, meiosis occurs only in germ cells, which are put aside for the formation of gametes (sperm and egg). Reproduction by meiosis allows for species survival and it increases genetic variability. The process, during which the germ cells are generated is called meiosis. It represents natures solution to the problem of chromosome doubling that would occur, if two diploid cells, i. e. two...
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Spindle Fibers Daughter Cells
451 wordsThe Process of Mitosis Mitosis The Process of Mitosis is the term used to describe cell division for replication. The product at the end of mitosis is two daughter cells both genetically identical to the original (parent) cell. This process is used for growth and repair within an organism and also for asexual reproduction. There are five main stages to mitosis, called Interphase, Prophase, Metaphase, Anaphase and Telophase. Although the process has been divided up into these stages the process o...
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Nuclear Membrane Daughter Cells
471 wordsMitosis evolved in complex plants and animals for growth and repair. Mitosis, the division of a cell resulting in two identical daughter cells, prolongs an organism s life by replacing old, dead, and damaged cells. In complex animals and plants, mitosis occurs everywhere, except sex cells. Meiosis evolved in complex plants and animals to increase variation in offspring and to maintain the number of chromosomes from generation to generation. Meiosis occurs in the sex cells of organisms, specifica...
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Gregor Mendel Second Law
1,343 wordsGregor Mendel was an Augustinian nineteenth century monk who, due to a series of momentous experiments, is now widely regarded as the forefather of genetics. Mendel studied the inheritance of seven contrasting characteristics of the species Pisum sativum, more commonly known as the garden pea. Each of the variables that Mendel experimented with were discontinuous; there were no intermediate forms. For example, one of the variables was length of stem, which was always either tall or short. From h...
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