Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Problems with Race
|
Makes too strong a claim
-Classifying people by racial groups due to environment is claiming that it comes from genetics FALSE |
|
|
Polygenic Traits
|
Multiple genes determine 1 trait (ex skin tone, height)
-1 parent tall and black + 1 parent short and white CAN= offspring medium height and carmel colored |
|
|
Traits are Arbitrary
|
tallness is relative to comparison cannot make distinct generalizations
|
|
|
Dividing Humans by Race NOT TRUE
|
because phenotype (race) comes from genotype we cannot divide humans into natural biological units
|
|
|
Humans are varied phenotypically but no genetically
|
Anywhere int he world there will be similar levels at different places in the world but the most variation is within the group of a population
|
|
|
More genetic Variation in Chimps than Humans
|
Humans are new species not lots of variation yet (bulk within population -> africa)
|
|
|
Why do we classify things in the first place?
|
-Step towards understanding things
-forget that we are just rying to understand but leads to arguments -Hypothesizing -Just want to know why we appear different |
|
|
Polymorphism
|
Why we're different
|
|
|
Development Plasticity
|
Environment affects expression of polygenic traits
-if coding by multiple genes the environment determines development (chooses gene) |
|
|
Genetic Markers
|
represent what part of the world (larger scale north south east west)
|
|
|
Morphological Traits
|
Represent distinguishing traits, specific cultures (ex. italian, japonese, etc.)
|
|
|
Human Genetic Variation/Race Important Points
|
-Humans very genetically homogeneous
-genetic variation not compatible with biological race designation (no subdivisions into biologically distinct groups) -there are differences in geno/phenotypes within and between human populations |
|
|
Socially Defined Races Exist
|
-Shaped by historical factors and socioeconomic and educational circumstances
-genetic differences aren't the cause of population variation in health -US racial classification not the only racial system in the world |
|
|
Cline
|
consist of forms of species that exhibit gradual phenotypic and genetic differences over a geographical area, result of environmental heterogeneity (ecotypes)
|
|
|
Polymorphism
|
understanding why we're different
|
