Ch. 15 Book Vocab Flashcards
(15 cards)
artificial selection
intentional breeding for desirable traits
transgenes
foreign genes introduced into plants through genetic engineering
Aristotle
- observed grand design in nature and arranged all organisms known to him from the simplext to most complex in what he called the Scale of Nature
- Aristotles arrangement implied that all organisms were static and did not evolve
Leonardo da Vinci
identified foosils correcltly, that they were previously exisiting organisms that became extinct
Georges Cuvier
French zoologist, paleontologist, used comparative anatomy at end of 18th century to classify animals
Jean Baptiste Lamarck
believed in Inheritance of acquired genetics, stretching of giraffe necks passed on immediately into next offspring
incorrect by inspiring
First Revolution
- The first wave of evolution
- Origin of Species by Charles Darwin, natural selection
Second Revolution
- second wave of evolution
- Gregor Mendel’s inheritance of traits and population genetics to understand mechanisms
Third Revolution
- 3rd wave of evolution
- “evo-devo”
-homeobox genes
convergent evolution
unrelated organisms that evolved similar forms in adaptation
natural selection
tendency of populations to adapt to the environment to enhance survival
based on four principles: overproduction, struggle for existence, inheritance and accumulation of favorable variations, and survival and reproduction of the fittest
mutation
heritable change in gene or chromosome
deletion mutation
chromosome breaks off and is lost
translocation mutation
piece of a chromosome may become attached to another
inversion mutation
part of a chromosome may break off and then become reattached in an inverted position