PPT-Genetics: Part I Mendel and the Gene

2 Marfans Syndrome Cleft chin Colorblindness P olydactyly Widows peak Freckles Mendelian Genetics What do you remember about Mendel and his genetics studies from your first biology course. By: Keith King. Objectives. State the history of genetics;. Describe major century events;. Define terms used in genetics . History of Genetics. People have known about inheritance for a long time.. --children resemble their parents. Stephen Montgomery. smontgom@stanford.edu. montgomerylab.stanford.edu. @. sbmontgom. Identifying the genes and variants responsible for disease.. Monogenic to polygenic diseases. Rare to common variants. . Mendel and His Pea Plants. Gregor. Mendel. Austrian. Recommended to enter an abbey by his physics teacher. Becoming a friar allowed Mendel to continue his studies in various science fields without having to pay for it. QOD . 1/23/13- TRUE OR FALSE? . Girls . inherit more traits from their mother than their father. You . have inherited traits that are not apparent. Color . blindness is more common in males than females. 1800’s. by an . Austrian botanist monk . named . Gregor. Mendel. . Because his work laid the foundation to the study of heredity, . Mendel is referred to as “The Father of Genetics.”. Mendel’ Pea Plants. Objectives. State the history of genetics;. Describe major century events;. Define terms used in genetics . History of Genetics. People have known about inheritance for a long time.. --children resemble their parents. The . Work of . Gregor. Mendel. Genetics. :. The scientific study of heredity. (Is now at the core of a revolution in understanding biology.). Gregor. Mendel. : Was an Austrian Monk, who was in charge of the monastery garden. He was the first person to trace the characteristics of successive generations of a living thing (pea plants).. 1. Family resemblance: your mother and father each contribute to your genetic makeup.. allele:. alternative version of a gene. 2. Family resemblance: your mother and father each contribute to your genetic makeup.. Heredity. – The passing of characteristics from . parent to offspring.. Genetics. – the study of heredity. Gregor. Mendel (. 1822-1884). The father . of genetics.. http://. www.biography.com. (And why was his work so important?). Gregor. Mendel. Gregor. Mendel was a monk who lived in the 1800s. Mendel’s Mind Wandered…. Mendel wondered how the same species of plants could have different characteristics. KEY CONCEPT . The chromosomes on which genes are located can affect the expression of traits.. Two copies of each autosomal . gene . affect phenotype.. Mendel studied autosomal gene traits, like hair texture. . heredity. Heredity is the cause of similarities between individuals. This is the reason that brothers and sisters with the same parents resemble each other and with their parents. Variation is the cause of differences who do resemble each other are still unique individuals. Thus, we have no trouble in recognizing the differences between sisters, for example, and even ‘identical’ twins are recognized as distinctive individuals by their parents and close friends. . GeneticsGeneticsGene: basic unit of Gene: basic unit of inheritance inheritance Two genes(or alleles) for Two genes(or alleles) for each characteristic: one each characteristic: one from father and on to an interest in microscopy. During his life, Leeuwenhoek assembled more than 250 icroscopes, some of which magnified objects 270 times. Through magnification, he discovered presence of “micro&#