Classification

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  • Created by: Sopha8
  • Created on: 31-05-14 09:45
What is the science of classification of organisms called? explain the hierachy system
taxonomy, levles of groups, K P C O F G S
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What is a species?
groups of similar organsims that are able to reproduce to give fertile offspring
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What is phylogenics?
classification based on common ancestor
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What are the problems with classification?
some species extinct, reproduce asexually, ethical-study in lab, pratical- difficult in wild
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How to carry out DNA hybridisation
DNA from 2 species, seperated strands mixed, where base sequences are the same hydrogen bonds form (specific base pairs) heated, more hydrogen bonds=higher melting point-more similar
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Why does comparing proteins show how closely related speices are?
similar DNA sequencing so similar amino acids in proteins are formed, immunological comparision- antibodies, similar proteins will bind to same antibodies
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What is the role of courtship behaviour in classification?
species specific so prevent inbreeding
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Card 2

Front

What is a species?

Back

groups of similar organsims that are able to reproduce to give fertile offspring

Card 3

Front

What is phylogenics?

Back

Preview of the front of card 3

Card 4

Front

What are the problems with classification?

Back

Preview of the front of card 4

Card 5

Front

How to carry out DNA hybridisation

Back

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