BIOL 2P05 Lecture Notes - Lecture 4: Confounding, Cecum, Lacertidae
21 Apr 2018
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Theoretical approaches: make assumptions, create model, make predictions, adjust model. 1920: e(cid:374)to(cid:373)ologist"s o(cid:374) fiji started to notice many of the butterfly pop. Were mostly female (cid:1005)9(cid:1006)7: a(cid:373)oa (cid:862)the rarity of the (cid:373)ale is so (cid:373)arked as to lead i(cid:374)evita(cid:271)ly to a suspi(cid:272)io(cid:374) that parthe(cid:374)oge(cid:374)esis (cid:373)ust o(cid:272)(cid:272)ur i(cid:374) this ra(cid:272)e(cid:863) 1990: biologist found notes, thought a 100:1 sex ration was too good to pass up and went to samoa to study them. 2001: 99% female: due to wolbachia (bacteria) infection that kills male larvae. 2005: a suppressor gene was introduced into female blue moons which made their male offspring resistant to wolbachia, the few resistant males mated far & wide & b/c the suppressor gene was dominant trait. Perfect match to the enivro~ long nosed horned frog (megophrys nasuta) 3 conditions for n. s: variation in trait, members of the lady bug population vary in the traits they display (orange vs. red, inheritance of trait.
