BSCI 1511 Chapter Notes - Chapter 14: Achondroplasia, Albinism, Dwarfism
25 Apr 2016
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Character: a heritable feature that varies among individuals (flower color) Trait: each variant for a character (purple or white for color) Advantages of peas: lots of variation, short generation time, large number of offspring, strictly controlled mating between plants. True-breeding: over many generations of self-pollination produce the same variety as parent plant. F2 generation: first offspring cross pollinating with other first offspring hybrids. Two or more genes assort independently during gamete formation. Each pair of alleles segregates independently of each other pair of alleles. This only works for genes that are on different chromosome or very far apart on a chromosome. Multiplication rule: multiply probability of one event by probability of another event to determine probability of two independent events happening simultaneously. Addition rule: used when two mutually exclusive events give the same outcome, in terms of producing heterozygous offspring, add probabilities. Complete dominance: one allele completely masks the other allele, homozygous and heterozygous phenotypes are indistinguishable.
