BISC 102 Study Guide - Midterm Guide: Allosome, Probability Distribution, Meiosis
31 Dec 2013
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Lecture 11 inheritance of variation outcomes. Way in which inheritance of polygenic traits show that inheritance is not blended Sex chromosomes = x chromosomes, they carry dna polymerase, can you see green white and green (etc. ) Similar with crossing a white flower with a red one, blending would look pink. That"s what they thought but it is obviously wrong and mendel proved that. Mendel"s revolutionary idea is that inheritance is particulate. Characterisitics of mendel"s work that set him apart as a genetic researcher. Polygenic traits shown continuous variation in a population. Components of mendel"s explanatory model: variation in traits due to different alleles, alleles segregate randomly into genomes, organisms inherit two alleles for each trait, appearance of heterozygotes determined by dominant alleles. The allele that determines the phenotype of a heterozygote is the dominant one. Distribution of progeny, given parental genotypes in monohybrid, dihybrid and sex-linked crosses. Parental genotypes, given distribution of progeny in monohybrid, dihybrid and sex-linked crosses.
