Chpt 14 Mendel and The Gene Idea

Chpt 14 Mendel and The Gene Idea - Chapter 14 Mendel and...

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Chapter 14 Mendel and The gene idea Define: Genetics Heredity Inheritance Genes Who was Mendel? Gregor Mendel Austrian Monk, founder of genetics - define Quantitative approach to inheritance with results supporting two laws of inheritance Mendel’s Law of Segregation The 2 alleles for each character segregate (separate) during gamete production Mendel’s Law of Independent Assortment Traits not transmitted together (chromosomes carrying the traits assort independently in each gamete) Mendel used scientific method to study cross breeding of garden pea Mating or crossing 2 true breeding parents is hybridization P, F1 F2 generations Observed 7 characters Character – a heritable feature as in flower color The character is the feature that varies among individuals Each variant for a character such as purple or white color is a trait Alternative versions of genes ( alleles ) account for variations in inherited characters For each character an organism inherits 2 alleles, one from each parent
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Chpt 14 Mendel and The Gene Idea - Chapter 14 Mendel and...

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