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114 Cards in this Set
- Front
- Back
Origins
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geographic place
geologic time taxonomy |
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Taxonomy
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science of describing and classifying organisms
traits classification |
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Variation
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individual
population INTERspecies INTRAspecies |
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INTERspecies
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differences BETWEEN species
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INTRAspecies
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differences WITHIN species
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Adaptation (types)
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Genetic
anatomic physiology culture adaptation |
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Adaptation
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1. Process of successful interactions between population and environment
2. Product of the past, condition of the present 3. How an organism "makes a living " |
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Anthropology
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cultural
linguistic archaelolgy biological paleoanthropology forensic primatology |
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Archaeology
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analyzing cultural remains (artifacts)
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Biological
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bio évolution, human and ancestors. Relationship between humans and other animals
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Paleoanthropolgy
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study of fossil records of primates, in order to understand our place in nature and relationships
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primatology
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study of primates
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Hypothesis
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formalized questions testable by data
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Scientific theory
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1. provides conceptual framework for research
2. based upon a coherent group of principles that explain a class of phenomena 3. must withstand the test of time and appearance of new evidence |
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"evolution"
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2500 years old
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evol
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"unfold from"
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ARISTOTLE
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ancient greek anatomist, zoologist, philosopher,
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Scala Natura
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believed in natural hierarchy
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natural hierarchy
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some organisms more evolved than others
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ORTHOGENESIS
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evolution is directed to perfection
male is the highest form rediscovered in the age of enlightenment (1600s) |
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Great chain of being
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important/ influential MISCONCEPTION in science
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Columbus
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about 1492 AD, eurpoean global expansion, leads to the discovery of new organisms
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LINNAEUS
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swedish botansit
BINOMIAL CLASSIFICATION (modern classification system) |
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BINOMIAL CLASSIFICATION
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Kingdom
class order suborder infraorder super family family genus species subspecies |
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latin
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base language of science
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Genus
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first letter always cap- Homo
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Species
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Homo habilis
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binomial classification system imples
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evolutionary relationships
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scientists in 1700s thought
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1. spontaneous
2. fixed and immutable(don't change over time) |
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young earth hypothesis
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6000 years old, biblical data
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geology
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became to get earth data
deep time |
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Deep time
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geologic time
shows that east his much older than 6000 years |
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Geological concepts, recognition of deep time
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1. law of super position
2. Biostratgraphy |
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law of super position
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steno- found evidence earth was made from rock layers
youngest on top olderst on bottom Ariduino- earth holds 3 unique rock layers (law of super position) |
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rock layers
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Quarterhary
Tertiary Secondary Primary |
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HUTON
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earth is in constant change
erosion can expose lost worlds, fossils |
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biostratigraphy
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first geological data method
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Charles Lyell
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founder of modern geology
"The principles of geology" |
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"The principles of Geology"
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by Charles Lyell, published 1831-1833
one of the most important pubs in science history |
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principles of geology
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uniformity of law(gravity)
uniformity of process(flooding) uniformity of rate(erosion) Uniformity of state change is non directional; it has no goal or purpose |
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Earth is how many years old
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5.4 to 8 billion years in age
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Predarwinian hypthesis
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catastrophism
- cuvier Lamarchism lamarck |
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cuvier
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catastrophism
but still believed in; spontaneous generation immutability |
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catastrophism
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1st popular hypothesis for extinction
1. extinctions do not occur 2. animal communities change over time 3. old and new animals connections ar NOT related NOT EVOLUTIONARY |
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Lamarchism
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50 from mom 50 from dad. theory of evolution by means of inheritance of acquired traits
EVOLUTIONARY |
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CHarles darwon
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natural selection
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expedition on the BEAGEL
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1831-1836 England
south america galapagos tahiti new eland austrailia africa |
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extant
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opposite of extinct
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Robert Fitz Rpy
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guy that took darwin on tour of world durrrski
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Darwin collected extinct fossils such as
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giant sloths, huge armadillos, toxodon, marine species (inland!)
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Darwin witnesssed geologic events in South America
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Volcanic activity/eruption
earth quake tsunami |
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worked with
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finches, earthworks, pigeon breeding (artificial selection)
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Darwins brain trust
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Lyell
Wallace TH Huxley Malthus |
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MALTHUS
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"essay on the principle of population"
survival of the fittest economist social status |
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HUXLEY
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inspired science fiction
connection between apes and humans anatomy, paleontology, professor |
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WALACE
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also had the idea of natural selection
co presented with darwin to science organization |
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"ORIGIN OF SPECIES"
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DArwin published in in 1859
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most preferred
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LAMARCKISM
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population variation
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provieds flexibility of response to changed condition. If variation is absent then the species has ferwe portions
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scienctists at the time supported BLENDING INHERITANCE
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Concept that 100 % of each parents heritable material is transferred to the offspring, blending together
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Blending inheritance would result in
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a loss of variation
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MENDEL
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"Principles of Heredity" 1866, with pea plants!!! first geneticist. 7 traits WERE identified, 2 phenotype variation
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phenotype
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physical variation
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dominant phenotype
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more common physical variation
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recessive phenotype
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less common physical variation
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Genes
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the basic unit of inheritance
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Allele
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alternative form of a gene; alleles are paired ( one from each parent)
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genotype
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the combo of alleles for a gene
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phenotype
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physical expression of the genotype
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A
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dominant
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a
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recessive
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HOMOZYGOUS
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both alleles are the same (AA or aa)
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HOMOZYGOUS DOMINANT
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AA
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HOMOZYGOUS RECESSIVE
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aa
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Dominant pheontype
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Genotypes AA and Aa
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Recessive phenotype
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Genotypes aa
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Mendelian Heredity
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Maintains variation opposite of blending heredity
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Law of independent assortment
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genes controlling different traits are inherited independently of one another. as long as on different chromosomes (mutually exclusive)
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answer to Darwins unsolved question
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genres are the source of the phenotypic variation upon which natural selection operates
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mendelian traits are simple traits
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under the control of one gene
either present or absent (hitchhiker thumb), but some Mendelian tratis have variable expressivity (example extra digit) |
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Y chromosome
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differentiates a growing embryo into a make
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Hemophilia
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x linked recessive trait
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XAXA
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Homozygous dominant
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XAXa
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heteroxygous, carrier does not express the trait but CAN pass it to children
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XaXa
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Homoxygous recessive
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Males
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hemi- half, hemizygous
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XAy
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Hemizygous Dominant
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Xay
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hemizygous recessive (express harmful trait)
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Social darwinism
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was rooted in the belief that the "survival of the fittest" justified social inequality
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DARWIN supported the concept of blending inheritacne
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TRUESKII
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23 chromosomes
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HAPLOID CELL
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Somatic cell division
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MITOSIS
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46 chromosomes
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Diploid cell
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Directs protein synthesis
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DNA
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Gamete Cell Division
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Meiosis
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Morgan and Mueller
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Mutation is the ultimate source of genetic variation
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fruit flies
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used for mutation research
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Modern Synthesis Key founders
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Fisher, Haldane, Wright, Huxley, Mayr, simpson
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Mayr
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replaced typological with biological
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Simposn
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argued against orthogenesis
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joining natural selection with genetic heredity
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giving us modern evolutionary theory
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HARDY-WEINBERG
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equilibrium theorem concerns a biological impossibility, a population in which NO evolution occurs
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conditions needed for no evolution
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infinite population size
no emigration out of the population and no immigration in the population no mutation all mating is random no differential reproduction( no natural selection |
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Genetic drift
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occurs to emigration and or immigration
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mutation
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the source of entirely new genetic variation
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Forces of evolution
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genetic drift
gene flow mutation nonrandom (selective mating) natural selection genetic drift |
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Genetic drift
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involves random changes in allele and or genotype frequencies from one generation to the next, with greater effect in SMALL population
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Genetic drift subsets
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founder effect
bottle- necking |
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founder effect
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accumulation of random genetic changes in a very small population isolated from its original population
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bottle-necking
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dramatic loss of genetic diversity (usually due to natural disaster)individuals eliminated new group doesn't have same genetic distribute
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gene flow
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movement of genes between populations, expanding populations
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sexual selection
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subset of natural selection
results in selective mating |
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sexual selection
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male competition
orrr female choice |
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sexual dimorphism
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physicla differneces in adult males and females of the same species (excluding reproductive organs)
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