BIOLOGY 151 Lecture Notes - Blending Inheritance, Haemophilia, Stamen

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29 Nov 2012
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In many species, individuals have two alleles of each gene. The principle of segregation states that prior to the formation of eggs and sperm, the allele of each gene separate so that each egg or sperm cell receives only one of them. The principle of independent assortment states that alleles of different genes are transmitted to egg cells and sperm cells independently of each other. Genes are located on chromosomes: principle of segregation separation of homologous chromosomes in anaphase of meiosis. I: principle of independent assortment genes found on different chromosomes and is explained by chromosomes lining up randomly in metaphase of meiosis i. There are important exceptions and extensions to the basic patterns of inheritance. 1865 gregor mendel, an austrian monk, worked out the rules of inheritance through a series of brilliant experiments on garden peas. Walter sutton and theodor boveri formulated the chromosome theory of inheritance which proposes that meiosis causes the patterns of inheritance that mendel observed.

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