Mendelian Principles

Mendelian Principles - Mendelian Principles Mendels model...

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Mendelian Principles Mendel’s model of heredity - 5 main assumptions parents don’t transmit traits directly to offspring o information about traits (factors) get passed down o factors encode how an individual expresses those traits 2 factors for each trait o factors carried on chromosomes o gametes (haploid) each carry a factor for each trait o random chance determines which factor goes into each gamete not all copies of factors are the same o alleles - alternative forms of a trait o homozygous - having the same 2 alleles for a certain trait o heterozygous - having different alleles for a certain trait o gene - factors that determine traits o locus - location of a gene on a chromosome alleles don’t influence/change each other o alleles stay the same, don’t blend w/ others an allele doesn’t guarantee that the trait will be expressed o genotype - all the alleles that the individual contains o phenotype - physical appearance/expression of those alleles Punnet square
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.

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Mendelian Principles - Mendelian Principles Mendels model...

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