Speciation Flashcards

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1
Q

Speciation

A

The process of a new species being developed

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2
Q

types of speciation

A

Sympatric and Allopatric

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3
Q

Sympatric speciation

A
  • in the same country
  • organisms are reproductively isolated e.g., physical changes
  • prevents gene flow
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4
Q

Allopatric speciation

A
  • different country
  • organisms are reproductively isolated by geographic location
  • prevents gene flow
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5
Q

Allopatric speciation process

A

1) organisms are separated via geographic isolation

2) random mutations lead to variation and adaptation

3) natural selection allows better adapted organisms to survive and reproduced

4) gene flow between isolated populations stop

5) overtime’s populations change sufficiently so they can no longer breed to produce fertile offspring

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6
Q

Sympatric speciation process

A

1) random mutations lead to variation and adaptations

2) natural selection allows better adapted organisms to survive and reproduce

3) organisms become reproductively isolated e.g., breeding patterns

4) gene flow between isolated populations stop

5) overtime populations change sufficiently so they can no longer produce fertile offspring

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7
Q

Gene flow

A

Refers to the movement of genes or alleles between interbreeding populations of a particular species

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