Speciation Flashcards

1
Q

Define speciation

A

The formation of a new species

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2
Q

Name and explain the 2 different types of Speciation

A

1) Allopatric speciation. Speciation where there is geographical isolation.
2) Sympatric speciation. Speciation where there is not geographical isolation.

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3
Q

What can result from Allopatric speciation? Give an example

A

Founder effect. Huntingtons disease in Afrikaans people

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4
Q

What can result from Sympatric speciation? Give an example

A

Hybrid sterility and infertile offspring. 2 different species mating.

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5
Q

Name different reproduction isolation mechanisms

A

1) Breeding At certain times
2) Species specific courtship behaviour
3) Adaptation to different pollenators

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6
Q

Define inbreeding. Explain its effect

A

Mating between individuals too closely related. Increases Homozygosity

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7
Q

Define outbreeding. Explain its effect

A

Mating between individuals who are distantly related. Promotes heterozygosity.

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