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Biology by Mind Map: Biology
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The study of living things

11-1 Work of Gregor Mendel


Gene=Part of DNA coding for trait

Allele=2 Contrasting forms of gene

Gregor Mendel & Pea Plants

Mendels First Conclusion

11-3 Exploring Mendel Genetics

Independent assortment-allels for seed shape segerated independtly of those for seed color

Mendels Principles

Incomplete Dominance-One allele is not completlt domaint over another

Codominance-Both allels contribute to the phenotype

Multiple Alleles-Genes that have more than two alleles

11-2 Probablity & Punnett Squares

Probability=Liklihood that a particular event will occur

Punnett Squares=Gene combination that might result from a genetic cross can be determined by drawing a diagram

Punnett squares are used to predict and compare the genetic variables that will result from a cross

Homozygous-organisms that have two identical alles for the same trait

Heterozygous-Organisms that have two different alles for the same trait

11-4 Meosis

Homologous-Each of the 4 chromosomes that came from the male patient has a corresponding chromosome from the female patient

Diploid-"Two sets"

Crossing over-exchange portions of their chromatids

The difference between mitosis and meiosis