Classification and Biodiversity . Lesson 2. Principals of Taxonomy continued. . Baleen Whales. Which species is the sperm whales most closely related to? What is the general term given to the species that preceded the Narwhal and the Porpoise?
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Lesson 2. Principals of Taxonomy continued.
How? = Today’s lesson
Quantitative measure-What temperature is needed to break these bonds again? The fewer mispairings, the more H-bonds, the higher the temperature needed.
Use this data to construct a phylogenetic tree for these 4 species. You can assume that they all came from a single common ancestor.
Differences in the primary structure of haemoglobin between 4 species of animals.
Example-Are Rabbits more closely related to chimpanzees or Elephants?
Scientists can use a protein called albumin to tell.
How? Answers on a whiteboard.
Rabbit injected with pure human albumin.
Rabbit produces antibodies against human albumin
Anti-human antibodies collected and purified.
Produces very dense prcipitate
Produces less dense precipitate
Is this data consistent with the phylogenetic tree you drew up earlier?