Speciation Flashcards

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1
Q

2 types of speciation

A
  1. Anagenesis: derived species

2. Cladogenesis: similar derived species and unsimilar derived species

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2
Q

Evolution types

A
  1. Microevolution: Changes within species

2. Macroevolution: Beyond species level

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3
Q

Types of Anagenesis

A
  1. Directional selection

2. Stabilizing selection

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4
Q

Type of Cladogenesis

A
  1. Disruptive selection

2. Geographic isolation

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5
Q

Paces of Speciation

A
  1. Insects - rapid change

2. Mammals - gradual change

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6
Q

Allopatric speciation

A

Geographic isolation

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7
Q

Sympatric speciation

A

Speciation in the same areas

*fruit flies w/ maltose and sucrose

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8
Q

Ring species

A

Similar genetic traits from same parent but cannot interbreed

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9
Q

Isolation Types

A
  1. Prezygotic
    * Temporal
    * Spatial
    * Pollinators
    * Reproductive barriers
    * Chromosomes
  2. Postzygotic
    * Non-viable offspring [hybrid necrosis]
    * Sterile offspring
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