![]() For more information visit this page.Download Notes on Pattern on Inheritance - General Biology | BIOL 1001 and more Study notes Biology in PDF only on Docsity! Chapter Ten-Patterns of Inheritance Inheritance is the process by which the characteristics of individuals are passed to their offspring A chromosome consists of a single double helix of DNA packed with a variety of proteins The units of inheritance-genes A genes physical location on a chromosome is called its locus The chromosomes of diploid organisms occur in pairs called homologues Both members of a pair of homologues carry the same gene, located at the same loci Different versions of a gene are called alleles Organisms have two copies of each gene Same allele at a given locus-homozygous The same pair Different alleles at a given locus-heterozygous Different pairs Organisms that are heterozygous at a specific locus are called hybrids When an organisms sperm fertilizes its own eggs, the process is called self fertilization When sperm from one organism fertilizes eggs from a different organism, the process is called cross-fertilization Organisms are called true breeding when they possess a trait, such as purple flowers, that is always inherited unchanged by all of its offspring that are produced by self fertilization All of the white flowers in the F3 generation in Mendel’s plants produced white flowers White flowered parents always gave rise only to white flowered offspring About 1/3 were true breeding for purple but the other 2/3 were hybrids that produced both purple and white flowered offspring F2 generation included ¼ true breeding purple, ½ hybrid purple, and ¼ true breeding white Each organism has two alleles for each gene, one on each homologous chromosome Dominant & Recessive The pairs of alleles on homologous chromosomes separate, or segregate, from each other during meiosis Law of Segregation: each gamete receives only one allele of each pair Because homologous chromosomes separate at random during meiosis, the distribution of alleles to the gametes is also random True breeding organisms have 2 copies of the same allele for a given gene, and therefore homozygous for that gene Hybrid organisms have 2 different alleles for a given gene and are therefore heterozygous for that gene The F2 generation contained three types of offspring: PP, Pp, and pp. This typeface is also available within Office applications. ![]() Products that supply this font Product name License Microsoft fonts for enterprises, web developers, for hardware & software redistribution or server installations.Slng:'Latn', 'Grek', 'Cyrl', 'Armn', 'Geor', 'Geok', 'Arab', 'Hebr', 'Lisu'ġ252 LaLatin 2: Eastern Europe 1251 Cyrillic 1253 Greek 1254 Turkish 1255 Hebrew 1256 Arabic 1257 Windows Baltic 1258 Vietnamese Mac Roman Macintosh Character Set (US Roman) This layout logic for Biblical Hebrew is open source software under the MIT License see embedded license description for details.ĭlng:'Latn', 'Grek', 'Cyrl', 'Armn', 'Geor', 'Geok', 'Arab', 'Hebr', 'Lisu' ![]() Hebrew OpenType Layout logic copyright © 2003 & 2007, Ralph Hancock & John Hudson.
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