History
Sources of Genetic Diversity
Natural Selection
Evidence
Vocab
100
HMS Beagle
What is the ship the ship Darwin took to the Galapagos Islands
100
any permanent change in an organisms DNA
What is mutation
100
occurs when organisms with favorable variations survive, reproduce, and pass on their variations to the next generation
What is natural selection
100
provides a record of early life and evolutionary history
What is fossil record
100
the hereditary changes in groups of living organisms over time driven by genetic diversity
What is evolution
200
On the Origin of Species
What is the book Darwin wrote
200
chromosomes can line up different ways during metaphase I of meiosis
What is independent assortment
200
more organisms are born than can survive
What is natural selection
200
structural features that can be similar in arrangement, in function, or in both
What is anatomy
200
the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population
What is founder effect
300
believed population growth would always overpower food supply growth, creating huger and disease
What is Malthus
300
homologous pairs exchange similar section of the chromosome in prophase I
What is crossing over
300
when the average individual in the population have higher fitness and are favored
What is stabilizing selection
300
the early stages of many animals with backbones are very similar
What is embryology
300
organisms will mate with individuals in close proximity or with specific traits
What is nonrandom mating
400
believed organisms could alter the size or shape of particular organs by using their bodies in new ways
What is Lamarck
400
many possible egg/sperm combinations for two parents
What is random fertilization
400
when individuals at one end of the curve have higher fitness and are favored more than individuals in the middle or at the other end
What is directional selection
400
similar biochemical patterns in proteins and DNA/RNA with various species
What is biochemistry
400
the movement of alleles into and out of a gene pool
What is gene flow
500
variation exists among individuals, resources are limited, so not all individuals can survive
What is Darwin
500
new genetic combination
What is crossing over
500
when individuals at both of the extremes of a trait are both more fit and over the average individuals in the population
What is disruptive selection
500
similar, but unrelated species
What is geographic distribution
500
any change in the allele frequencies in a population that is used to change through independent assortment
What is genetic drift
M
e
n
u