BIO 302 Study Guide - Spring 2018, Comprehensive Midterm Notes - Protein, Messenger Rna, Embryo
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All evolutionary changes in form are the result of changes in development. Homology- derivation of a structure in two different groups from a common ancestral structure. Homology- same structure in different organisms derived from the same common ancestor: one bone, two bones, lots of bones, digits. Arthropod vs. vertebrate: similarities in early development , but evolution doesn"t work by starting with a pattern and building on it. It is developed from the primary oocyte by maturation: epithelia cells. Intestinal lining: esophagus, lining of mouth and throat. What cell type must have all the material to make an organism. Answer:dissociate and culture, obtain nucleus, activate and enucleate egg, cleavage, complete tadpole (transfer adult nucleus into an egg cell to develop, would be considered a clone: similar test done on mammals, ex. Answer: separate the cells, and observe the development to see if they are the same. (example from book) Answer:the cytoplasm and its content within each individual cell could be different.
