Bio 2200 Exam 1 Questions With Complete SOLUTIONS
alleles
different variants of a gene
gene pool
all copies of all alleles at every locus in all members of the
population
hardy Weinberg principle
principle that allele frequencies in a population will remain
constant unless one or more factors cause the frequencies to
change
why is hardy Weinberg a null hypothesis
because it assumes no difference between allele frequencies in
parents and offspring
which 2 mechanisms of evolution can cause evolution on their
own
genetic drift and natural selection
which 3 mechanisms of evolution can't lead to evolution on their
own but can be a starting point
mutation, gene flow, and non-random mating
genetic drift
change in allele frequency due to chance
examples of genetic drift
, bottleneck effect and founder effect
bottleneck effect
A change in allele frequency following a dramatic reduction in
the size of a population
founder effect
change in allele frequencies as a result of the migration of a
small group of individuals
balancing selection
natural selection that maintains two or more phenotypic forms in
a population
examples of balancing selection
heterozygote advantage and negative frequency dependent
selection
sympatric species
species that occur together in the same area but are different
species
biological species concept
species are groups of actually or potentially interbreeding
populations that are reproductively isolated from other groups
reproductive isolation
populations whose members do not mate together or cannot
produce viable offspring
pre-zygotic isolating mechanisms
alleles
different variants of a gene
gene pool
all copies of all alleles at every locus in all members of the
population
hardy Weinberg principle
principle that allele frequencies in a population will remain
constant unless one or more factors cause the frequencies to
change
why is hardy Weinberg a null hypothesis
because it assumes no difference between allele frequencies in
parents and offspring
which 2 mechanisms of evolution can cause evolution on their
own
genetic drift and natural selection
which 3 mechanisms of evolution can't lead to evolution on their
own but can be a starting point
mutation, gene flow, and non-random mating
genetic drift
change in allele frequency due to chance
examples of genetic drift
, bottleneck effect and founder effect
bottleneck effect
A change in allele frequency following a dramatic reduction in
the size of a population
founder effect
change in allele frequencies as a result of the migration of a
small group of individuals
balancing selection
natural selection that maintains two or more phenotypic forms in
a population
examples of balancing selection
heterozygote advantage and negative frequency dependent
selection
sympatric species
species that occur together in the same area but are different
species
biological species concept
species are groups of actually or potentially interbreeding
populations that are reproductively isolated from other groups
reproductive isolation
populations whose members do not mate together or cannot
produce viable offspring
pre-zygotic isolating mechanisms
