Genetics Midterm 1 Cheat Sheet

Genetics Midterm 1 Cheat Sheet - Mendels Laws 1. Principle...

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Mendel’s Laws 1. Principle of Segregation: Each individual diploid organism possesses two alleles for any particular characteristic. These two alleles segregate (separate) when gametes are formed, and one allele goes into each gamete. Furthermore, the two alleles segregate into gametes in equal proportions. 2. Concept of Dominance: When two different alleles are present in a genotype, only the trait encoded by one of them—the dominant allele—is observed in the phenotype. 3. Principle of Independent Assortment: Alleles at different loci separate independently of one another. Laws of Probability 1.Probability of two or more independent events calculated by multiplying probability of each 2. Probability of two mutually exclusive events calculated by adding together Ex.
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AaBbccDdEe x AaBbCcddEe What is probability of aabbccddee? Aa x Aa yielding aa (1/4) Bb x Bb yielding bb (1/4) cc x Cc yielding cc (1/2) etc. X
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This note was uploaded on 05/04/2009 for the course BICD 660930 taught by Professor Reinagel during the Spring '09 term at UCSD.

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Genetics Midterm 1 Cheat Sheet - Mendels Laws 1. Principle...

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