Chapter 3 Flashcards
Do not directly guide our behavior
genes
Every human shares about __ % of the same DNA, but __ % difference makes you, you
99.9%.1%
In extraversion (outgoingness) & neuroticism (emotional instability), __ twins are much more similar than __ twins
identicalfraternal
Jim Springer and Jim Lewis were identical twins who were separated at birth & adopted by different families. Virtually alike with __, __, __, __, & __
personality, intelligence, heart rate, brain waves, and voices
People grown up together (biologically or not) don’t much resemble one another in __
personality
Adoptees’ traits bear more similarities to their __ parents than their __ parents
biologicaladoptive
__ factors shared by a family’s children have virtually no impact on personality
Environmental
__ do influence children’s attitudes, values, manners, faith, and politics
Parents
Biologically rooted __ helps form our enduring personality
temperament
__ refers to the extent to which differences among people are attributable to genes
Heritability
The more __ environments are, heredity as a source of differences becomes important
similar
Heritable __ differences need not imply heritable __ differences
individualgroup
__ respond to environments and are self-regulating
Genes
human differences are nearly always the result of both __ and __ influences
geneticenvironmental
Goal of __ __: find some of the many genes that influence normal human traits. Seek link b/w certain genes or chromosome segments and specific disorders
molecular genetics
When certain traits are selected (by reproductive advantage), those traits will __ over time
prevail
Our adaptive flexibility to environments contribute to our __: ability to survive & reproduce
fitness
we are __ prepared for a world that no longer exists
biologically
__ are more likely than females to initiate sexual activity
Males
Casual, impulsive sex is most frequent among __ with traditional __ attitudes
malesmasculine
__ have lower threshold for perceiving warm responses as a sexual come-on. __ more often than __ attribute a __ friendliness to sexual interest
MenMenwomenwoman’s
Woman normally incubate & nurse __ __ , while males spread genes to other __
one infantfemales