Chapter 1 Flashcards
Darwin’s finches represent a good example of
Adaptive Radiation
The theory of evolution by natural selection was proposed by
Darwin and Wallace
Random changes in gene frequency that occur in small populations comprise the concept of
Genetic drift
All of the alleles of all genes possessed by members of a population collectively form the
Gene pool
Structures in different organisms that are similar because they descend with some modification from a corresponding feature of their common ancestor are said to be
Homologous
Lyell is credited with the principle of __________, which was described in his Principles of Geology
Uniformitarianism
Darwin’s thoughts on evolution were greatly influenced by an essay on populations written by ______.
Thomas Malthus
True/False
According the the Hardy-Weinberg Law, the frequency of each allele remains constant generation after generation in a freely interbreeding, sexually reproducing, large population that experiences natural selection
False
True/False
Genetic drift occurs to some degree in all populations of finite size
True
True/False
Darwin’s evolutionary theory differs from Lamarck’s in being a variational rather than transformational theory
True
Which of the following was a common early criticism of Darwin’s theory of natural selection?
It could not explain the origins of new structures or new species, only the modification of existing ones
True/False
The most direct evidence for Darwins theory of perpetual change is the fossil record
True
Which of the following best describes the relationships between organismal ontogeny any phylogeny?
Ontogeny may recapitulate phylogeny for some characteristics, but rarely does this occur for the organism as a whole
Which of the following is not one of the observations that led Darwin to propose the theory of natural selection
The hereditary process features inheritance of discrete and non lending particular factors
