HMB265H1 Lecture 2: HMB265 - Lecture 2
18 Sep 2016
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Hmb265: human and general genetics lecture #2. Mendel"s experiments-antagonistic pairs, dominance, testcross, monohybrid cross, Reading: hartwell et al. , 1st can. edition, chapter 2 (emphasis on pages 15-21 and 23-29) Artificial selections: scientists selecting the parents specifically to generate specific traits in the children. The case of merino sheep: valued for their wool. Moravian sheep breeders in 1837: region of czech republic. What should i do? : unsure if the valuable trait would appear in next generations. Why moravian sheep breeders had a dilemma in 1837 . Two hypotheses to explain inheritance: 1) one parent contributes more to an offspring"s inherited traits. Aristotle contended that it was the male and that a fully formed homunculus was inside the sperm. Homunculus little human : 2) blended inheritance. The traits of the parents are blended in their offspring (like blue and yellow to make green) - explained single offspring, but not siblings, or the next generation.
