BIOB51H3 Lecture Notes - Lecture 8: Genetic Variation, Melanin, Twin
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If they ha(cid:448)e to do (cid:449)ith effe(cid:272)ts of diffe(cid:396)e(cid:374)(cid:272)es i(cid:374) ge(cid:374)e se(cid:395)ue(cid:374)(cid:272)e a(cid:374)d alleles, they"(cid:396)e genetic effects. Slide 13: difference in ability to taste things. Slide 14: yes, this type of variation can evolve. Slide 15: monozygotic twins have phenotypic variation but not genetic variation, and this is due to environmental effects, one on left is the smoker and tanner. One is in chemical releasing predator environment while the other is not: presence of chemicals allows for teeth on back of neck and helps to deter environmental effects. Slide 17: no it can not evolve. Slide 18: some will burn and some will tan when going out in the sun for a couple hours, one on the right may be able to recruit melanin more easily, environment and genes have an effect. Slide 19: the black caterpillar turns green at a certain point in their lives when they are exposed to high temperatures.
