Module 9 Flashcards

1
Q

Darwin’s postulates

A

Characteristics are inherited

Too many offspring are produced

The better adapted offspring survive

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2
Q

Source for new alleles

A

Mutation

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3
Q

Vestigial structures

A

Useless structures

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4
Q

Biogeography

A

Distribution of life based on barriers over time development and prices of species on different locations

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5
Q

Artificiall selection is also known as

A

Selective breeding

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6
Q

Convergence

A

Similar structures with no common ancestor

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7
Q

Gene pool

A

All alleles in a species

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8
Q

Allopatric speciation

A

Speciation because of different places

There is dispersion variance and adaptive radiation

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9
Q

Sympatric speciation

A

Speciation that happens in the same place it is usually due to chromosomal differences or reproductive barriers

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10
Q

Rates of speciation

A

Simple Darwinism and punctuated equilibria

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11
Q

Simple Darwinism

A

Slow and steady

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12
Q

Punctuated equilibrium

A

Not slow and steady

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13
Q

Population genetics

A

Genetic composition in different populations

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14
Q

Allele frequency

A

How often in the wheel appears in the population

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15
Q

founder effect

A

Event that starts with a change in allele frequency

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16
Q

Hardy Weinberg equation

A

Helps find allele distribution

17
Q

P squared

A

Homozygous dominant percentage

18
Q

Q squared

A

Homozygous recessive percentage

19
Q

2pq

A

Heterozygous allele

20
Q

Hardy Weinberg equation

A

P² + 2pq + q²= 1

21
Q

Genetic drift

A

Allele disappears for no reason

22
Q

Bottleneck

A

Drastic change severely shrinks the population

23
Q

Gene flow

A

Flow of alleles in the population

24
Q

What things can affect evolution

A

Genetic drift the founder effect bottleneck effect or chance

25
Aneuploidy
Irregular number of chromosomes
26
Allopolyploidy
Abnormal number of chromosomes from different species
27
Autopolyploidy
Abnormal number of chromosomes from same species
28
Sexual selection
Mates that are most liked are most successful reproducing
29
Hybrid zones
Place where two closely-related species can interact and interbreed
30
Things that can happen in hybrid zones
Reinforcement Stability Fusion
31
Sister taxa
Points that come from one branch point
32
Species is
Genus + epithet
33
Cladistics
How we group taxa
34
Monophyletic
All descendants + MRCA
35
Descent with modification
Organisms come from one ancestor and diversify
36
Biological species concept
Species are groups that can interbreed and are reproductively isolated from other species
37
Phylogenetic species concept
Population characterized by one or more derived characteristics
38
Transposons
Jumping transfer genes between millet and rice
39
Ring of life model
All domains evolved from a pool of prokaryotes via horizontal Gene transfer