BIOL 105 Lecture Notes - Lecture 5: Heritability, Genotype, Human Height
Document Summary
In lecture we discussed the case study: lizards in the caribbean. Hypothesis 1 lizards living on the same island are most closely related. Hypothesis 2 lizards with the same body type and habitat are most closely related. Which of these hypotheses were supported: hypothesis 1, hypothesis 2, none of the above. We want to measure narrow sense heritability and additive heritability. Assuming we have no siblings in this class. Then, we will draw a regression line. A line where we find the vertical distance between each point and square it and add them all up. Cumulative distance is as small as possible. Expect heritability for this to be low. Expect heritability for ____ & ____ to be similar. We don"t see a cluster because we gave very discrete responses. We only have 43 total dots versus 138 responses (things are stacked on top of each other) 55. 2% of phenotype is determined by parents.
