Inheritance Patterns - 1 The process by which our genetic information is passed from one generation to the next, or from parent to offspring, is the study of inheritance, or transmission genetics. A gene is a region of a chromosome (piece of DNA) that contains a set of instructions for synthesizing a protein (polypeptide). These instructions are passed from cell to cell and from generation to generation as inheritable traits or characteristics. Within an organism, mitosis ensures that each cell formed has the precise set of genetic information of its chromosomes. Meiosis and sexual reproduction are the mechanisms used to pass the genetic instructions from parent to offspring. At this time we will look at how genes are transmitted from generation to generation and how alleles, the alternative forms or variations of genes, interact and are expressed in individuals. As we have learned, the chromosomes of diploid organisms come in pairs, the homologous chromosomes, so that each cell of a diploid organism typically has
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.