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Unformatted text preview: and the oldest individuals are found at the top of the pedigree. If the purpose of a pedigree is to analyze the pattern of inheritance of a particular trait, it is customary to shade in the symbol of all individuals that possess this trait. In the pedigree above, the grandparents had two children, a son and a daughter. The son had the trait in question. One of his four children also had the trait. Autosomal Recessive Characteristics of autosomal recessive inheritance It often skips generations; children that have the trait can have parents that do not. Heterozygotes (carriers) do not have the trait. People with the trait have two copies of the genes. If both parents are have the trait, all offspring will. Males and females are affected equally. Inbreeding results in a greater-than-expected number of rare autosomal recessive phenotypes....
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.
- Fall '10