BIO207H5 : BIO207 ALL TUTORIAL.pdf

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14 Apr 2014
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Problem sets: due at the beginning of the class. Genetics: science that deals w/ the structure & function of genes & their transmission from 1 generation to the next. Gamete: mature reproductive cells specialized for sexual fusion; haploid cells. Gene: factors; determinant of a characteristic of an organism. Phenotype - observable/physical set of traits (structural or functional) Monohybrid cross: cross b/w organisms that differ in a single trait. Confirm principle #: test-cross (**cross with homozygous recessive**): cross of an individual of unknown genotype (usually showing dominant phenotype) with a homozygous recessive individual to determine the unknown genotype. If offspring are all smooth, then unknown parent"s genotype is ss. If offspring show ratio of 1 smooth: 1 wrinkled, then unknown parent genotype is ss. Dihybrid cross - cross between organisms for 2 pairs of alleles at 2 different loci. Principles of probability: ratio of the number of times a particular event is expected.