Populations Evolution Flashcards

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1
Q

Study of the diversity of allele differences

A

Population genetics

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2
Q

Evolutionary changes with in populations

A

Microevolution

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3
Q

Various alleles of all genes in all individuals make up the ….

A

Gene pool

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4
Q

Proportion of each allele with in a populations gene pool

A

Allele frequency

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5
Q

Hardy-Weinberg Equilibrium States:

Allele frequency in a population will remain constant Assuming… (5)

A

No mutations

No Gene Flow

Random Mating

No Genetic Drift

No Selection

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6
Q
Gene mutations, 
Gene Flow (movement of alleles between population), 
Genetic Drift ( Changes in the allele frequency of a population due to change rather than selection by env.)
A

Causes of Microevolution

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7
Q

Who said; Each species has a perfect or “ essential “ form and variations is an imperfection on this essential form?

A

Plato

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8
Q

Who arranged organisms based on increasing order of complexity

A

Aristotle

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9
Q

Who wrote a 44 volume natural history series that described all plants and animals

A

Georges-Louis Leclerc aka Count Buffon

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10
Q

Who developed bi nominal nomenclature

A

Carolus Linnaeus

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11
Q

Scala naturae

A

Sequential Ladder

Simplest being at the bottom with God in top

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12
Q

Belief, supported by James Hutton, that geological forces act at a continuous, uniform rate

A

Uniformitarianism

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13
Q

Define Catastrophism and who proposed this idea

A

Cuvier

Changes in fossils in strata are explained by local mass extinctions followed by new species repopulating the area

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14
Q

Whose idea was “inheritance of acquired characteristics “

A

Lamarck

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15
Q

Study of geographic distribution of organisms

A

Biogeography

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16
Q

Over production potential of a species is referred to as

A

Differential Reproductive success

17
Q

Movement of alleles between populations

A

Gene flow

18
Q

Changes in the allele frequency of a gene pool due to chance events

This type of Evolution is more common in large or small populations

A

Genetic Drift

Small

19
Q

Type of genetic Drift, when a majority of genotypes are prevented from participating in producing the next generation, by Natural Disaster or Human Interference

A

Bottleneck Effect

20
Q

Cause of genetic Drift due to colonization by a limited number of individuals who, by chance, have a different genotype and allele frequency than the parent population

A

Founder effect

21
Q

What is referred to as the change in allele frequency of a population over many generations

A

Evolution

22
Q

P² + 2pq + q² is the formula for what?

A

The Hardy Weinberg Principle

23
Q

Nonrandom Mating is also called _____ ______

A

Assortative Mating

24
Q

Type of natural selection that the intermediate variation is most adaptive, as in human birth weight

A

Stabilizing selection

25
Q

Type of natural selection either of the extreme phenotypes is favored, as when antibiotic resistance increases over time

A

Directional selection

26
Q

Type of natural selection 2 or more extreme phenotypes are favored, 2 Peaks formed on Graph.

British land snails have 2 different banding colors

A

Disruptive selection

27
Q

When a species has 1 recessive allele that gives them an advantage, such as in sickel-cell anema

A

Hetrozygote advantage

28
Q

Type of Evolution that includes formation of new species

A

Macroevolution

29
Q

Adaptive traits tend to increase in frequency as a result of

A

Differential reproduction

30
Q

Origin of new species due to evolutionary process of descent with modification

A

Speciation