BIOL 1103 1st Edition Lecture 16 Outline of Last Lecture II Sex Linkage a Thomas Hunt Morgan III Passing Mutant Traits IV X Linked Recessive Disorders V Dominant Disorders Outline of Current Lecture II Details of Mendel s Experiments III Homozygous vs Heterozygous IV Probability Current Lecture Mendel studied characteristics such as shape color size length position of flower on plants Mendel s Law o hereditary factors occur in pairs o one factor may mask or prevent expression of the other dominance o pair of factors are segregated during gamete formation and randomly recombine during fertilization Punnett Squares o Homozygous genes both recessive or both dominant either RR or rr Heterozygous genes one dominant and one recessive Rr Probability These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute o Rule of multiplication probability of any two events happening is the product of each of their respective probabilities o If you were asked What is the probability of getting AaBbCc if crossing AaBbCC x aaBBCc The answer is 1 8 and is easily worked out by creating one Punnett square for A characteristics one for B and one for C
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