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?
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?