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Transcript
Who Was Gregor Mendel? Father of Heredity • Worked with garden peas • Thought of genes to explain inheritance • Said genes came in pairs What’s up With the Peas? Mendel was in charge of the garden in the monastery. He grew lots of peas. He discovered that when he crossed short pea plants with tall pea plants that a pattern emerged in the offspring. Genes As Explanation? Mendel suggested that "units of inheritance" were responsible for the traits he studied. We now call these units genes. Genes in Pairs Examination of the trait inheritance patterns of the pea plants suggested to Mendel that each trait resulted from two units of inheritance. Mendel proposed that one unit came from each parent plant. Father of Heredity Mendel is acknowledged as the father of heredity for his work with peas and his proposal of genes. Process of transmitting biological traits from parent to offspring through genes, the basic units of heredity. What Is an Allele? • One member of a pair or series of genes that occupy a specific position on a specific chromosome gene. Allele • A hereditary unit that occupies a specific location on a chromosome and determines a particular characteristic in an organism. • Genes exist in a number of different forms and can undergo mutation.
