Important Terms Flashcards

1
Q

Evolution

A

Change in genetic makeup of a population over time

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2
Q

Artificial Selection

A

Intentional reproduction of individuals in a population that have desirable traits

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3
Q

Natural Selection

A

Process of organisms adapting to environment which increases chances of survival and reproductive success

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4
Q

Gene Pool

A

All the alleles at all gene loci in a population

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5
Q

Allele Frequency

A

Proportion of alleles of a particular type in the gene pool

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6
Q

Gene Flow

A

Movement of individuals between population

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7
Q

Genetic Drift

A

Random changes in allele frequency from one generation to the next

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8
Q

Founder Effect

A

Difference in allele frequencies in colonizing populations compared to source population

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9
Q

Assortative Mating

A

Choosing mates with similar phenotypes

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10
Q

Disassortative Mating

A

Choosing mates with dissimilar phenotypes

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11
Q

Inbreeding

A

Choosing mates genetically related to oneself

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12
Q

Sexual Selection

A

Choosing mates with particular sexual characteristics

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13
Q

Fitness

A

A measure of reproductive success of certain phenotypes

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14
Q

Species

A

Population or group of populations whose members have the potential to interbreed with one another in nature to produce fertile offspring, but who cannot successfully interbreed with members of other species

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15
Q

Allopatric Speciation

A

Subsets of a population are separated by geographic barriers

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16
Q

Sympatric Speciation

A

Subsets of a population cannot be separated by geographic barriers

17
Q

Reproductive Isolation

A

Inability to exchange genes

18
Q

Polyploidy

A

Possessing more than two complete sets of chromosomes

19
Q

Adaptive Radiation

A

Proliferation of a large number of daughter species from a single ancestor species

20
Q

Hybrid Zone

A

Region where two related populations that diverged after becoming geographically isolated make secondary contact and interbreed where geographical ranges overlap