PSYCH361 Study Guide - Midterm Guide: Reciprocal Altruism, Hard Wired, Mate Choice

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH361
• Professor: Jennifer Stolz

Document Summary

Already shown that there"s no gene that codes for homosexuality, not passed on. Might be a recessive gene ex) h = dominant hetero gene vs h = recessive homo gene o o. If both parents are homozygous (hh x hh) then they"ll produce 4 hetero kids. Assume the 4 hetero kids will have 2 kids each, therefore (4 x 2) If both parents are heterozygous (hh x hh) then they"ll produce 3 hetero & 1 homo kids. Assume the 3 hetero kids will have 2 kids each, therefore (3 x 2) = 6 grandkids: after 1 generation, substantial cost is seen homozygous parents have a huge repro advantage. Maybe heterozygous kids realize a unique repro advantage, ie- they produce more ofspring than homozygous kids: unafected hh sibs > hh sibs, # of sibling ofspring stays the same regardless of presence of.