Evidence of Relatedness (VCE SSCE Biology): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Structural morphology
Structural morphology
Study of physical structures to establish relatedness
Molecular homology
Molecular homology
Study of DNA/protein sequences to establish relatedness
Homologous structures
Homologous structures
Same origin (common ancestor), different functions
Divergent evolution
Divergent evolution
Common ancestor evolves into two or more descendant species
Analogous structures
Analogous structures
Different origins, same function
Vestigial structures
Vestigial structures
Features that lost usefulness through evolution
Cytochrome c function
Cytochrome c function
Enzyme that carries electrons in respiration
mtDNA advantages for studying relatedness
mtDNA advantages for studying relatedness
Higher mutation rate & no recombination (maternal inheritance)
DNA sequence similarity & relatedness
DNA sequence similarity & relatedness
Higher similarity = closer evolutionary relationship
Haemoglobin function
Haemoglobin function
Protein that transports oxygen in blood