Bio Lab-Population Genetics: the Hardy-Weinberg Principle Flashcards

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1
Q

Natural selection

A

The differential survival and reproduction of individuals in a population

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2
Q

Origin Of Species

A

Provided an abundant and convincing evidence in support of evolution

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3
Q

Evolution

A

Change in populations over time

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4
Q

Theory

A

Explanatory power supporters by a large and divers body of evidence

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5
Q

Neo-Darwinism

A

Fusion of evolutionary biology with genetics of populations produced a new view of evolution

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6
Q

What does population genetics investigate?

A

Evolutionary change can arise due to natural selection, as well as migration, genetic drift, and mutation

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7
Q

“Changes in the genetic constitution of populations”

A

Evolution

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8
Q

Population

A

A group of organisms of the same species that occurs in the same area and have the opportunity to interbreed or share a common gene pool

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9
Q

Gene pool

A

All the alleles at all gene loci of all individuals in the population

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10
Q

Basic unit of evolutio

A

Population

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11
Q

Microevolution

A

Small-scale changes in the genetic structure of populations from generation to generation

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12
Q

Populations evolve not______

A

Individuals

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13
Q

Hardy-Weinburg Principle

A

Frequency of alleles in an ideal population will remain the same from generation to generation

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14
Q

Certain conditions for genetic variation:

A
  1. Population large 2. Matings random 3.No net changes in gene poo; due to mutation 4.No migration of individuals (gene flow) 5.No selection-genotypes equal
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15
Q

Testable

A

Hardy-Weinburg Principle

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16
Q

Sampling with replacement

A

Probability of selecting an allele should remain equal to its frequency

17
Q

Gene flow

A

Migrations of individuals between two populations

18
Q

Genetic drift

A

Effects of small populations size

19
Q

Natural selection

A

The dominant will overcome the weaker

20
Q

Genetic fixation

A

The loss of all but one possible allele at a gene loci in a population, common result of genetic drift in small natural populations

21
Q

Bottleneck effect

A

When a population undergoes a drastic reduction in size as a result of chance events

22
Q

Funder effect

A

Group of migrants becomes establishes in a new area not currently inhabited by species

23
Q

Migraton of individuals between populations results in ____ ___

A

Gene flow