UConn Biology 1107 Final Review Test with
Verified Answers
coenocytic organization can result in very ________ cells
>>>100%Correct answer>>> large
there is some _______________ ________________ to being multicellular
>>>100%Correct answer>>> selective advantage
One serious problem for the multicellulars is the limitations of ___________
>>>100%Correct answer>>> diffusion
bulk flow circumvents the limitations of _______________
>>>100%Correct answer>>> diffusion
diffusion >>>100%Correct answer>>> net movement down a
concentration gradient due to the random motion of individual molecules
bulk flow >>>100%Correct answer>>> movement of water and solutes
together due to a pressure gradient
The term ____________ refers to the entire mass of hyphae making up the
body of a fungus >>>100%Correct answer>>> mycelium
The term _______ refers to a single individual filament of fungal cells
>>>100%Correct answer>>> hypha
Fungi reproduce both __________ and ______________, and disperse by
spores >>>100%Correct answer>>> sexually, asexually
Fruiting bodies are the structures we call ______________ or mold
>>>100%Correct answer>>> mushrooms
,fungi have no _____ per se., the mating type is determined by a mating
type gene >>>100%Correct answer>>> sex
In this mutualism, the fungus gives the plant access to water and minerals,
and the plant gives the fungus sugars that it makes from photosynthesis
>>>100%Correct answer>>> glomeromycota
__________ are mutualistic associations between an ascomycete fungus
and agreenalga(orcyanobacterium) >>>100%Correct answer>>>
lichens
genetic variation >>>100%Correct answer>>> refers to differences in
DNA sequences
_________ are much more variable than humans >>>100%Correct
answer>>> fruit flies
patterns of genetic variation can be described by ____________
>>>100%Correct answer>>> allele frequencies
What can cause genetic variation? >>>100%Correct answer>>> a
mutation
two types of mutations >>>100%Correct answer>>> somatic and germ
line
mutations can be ___________ >>>100%Correct answer>>>
deleterious, neutral, or advantageous
recombination >>>100%Correct answer>>> gives new combinations
not present in the parent population
allele frequency >>>100%Correct answer>>> # of copies of an allele /
total # of alleles in a population
What is the frequency of a in this population?
50% aa 25 % Aa 25% aa >>>100%Correct answer>>> 62.5%
, Natural selection can be ___________, ____________, or _____________
>>>100%Correct answer>>> positive, negative, or balancing
natural selection >>>100%Correct answer>>> the change in an allele's
frequency over time based on that particular allele's impact on survival and
reproduction
Natural selection occurs when individuals with certain traits ____________
________ ____________ than do individuals without those traits.
>>>100%Correct answer>>> produce more offspring
heterozygote advantage >>>100%Correct answer>>> case where the
fitness of the heterozygote is superior to that of the homozygote
3 kinds of natural selection >>>100%Correct answer>>> stabilizing
selection, directional selection, disruptive selection
stabilizing selection >>>100%Correct answer>>> selects against both
extremes
directional selection >>>100%Correct answer>>> selects against one of
the two extremes
disruptive selection >>>100%Correct answer>>> selects against the
mean
artificial selection >>>100%Correct answer>>> selection by a breeder
rather than by competition
____________, _______________, ____________ __________, and
_________________ _____________ are non adaptive mechanisms of
evolution >>>100%Correct answer>>> migration, mutation, genetic drift,
non-random mating
small populations have problems with ______ because random events
have a disproportionately heavy impact >>>100%Correct answer>>>
drift
Verified Answers
coenocytic organization can result in very ________ cells
>>>100%Correct answer>>> large
there is some _______________ ________________ to being multicellular
>>>100%Correct answer>>> selective advantage
One serious problem for the multicellulars is the limitations of ___________
>>>100%Correct answer>>> diffusion
bulk flow circumvents the limitations of _______________
>>>100%Correct answer>>> diffusion
diffusion >>>100%Correct answer>>> net movement down a
concentration gradient due to the random motion of individual molecules
bulk flow >>>100%Correct answer>>> movement of water and solutes
together due to a pressure gradient
The term ____________ refers to the entire mass of hyphae making up the
body of a fungus >>>100%Correct answer>>> mycelium
The term _______ refers to a single individual filament of fungal cells
>>>100%Correct answer>>> hypha
Fungi reproduce both __________ and ______________, and disperse by
spores >>>100%Correct answer>>> sexually, asexually
Fruiting bodies are the structures we call ______________ or mold
>>>100%Correct answer>>> mushrooms
,fungi have no _____ per se., the mating type is determined by a mating
type gene >>>100%Correct answer>>> sex
In this mutualism, the fungus gives the plant access to water and minerals,
and the plant gives the fungus sugars that it makes from photosynthesis
>>>100%Correct answer>>> glomeromycota
__________ are mutualistic associations between an ascomycete fungus
and agreenalga(orcyanobacterium) >>>100%Correct answer>>>
lichens
genetic variation >>>100%Correct answer>>> refers to differences in
DNA sequences
_________ are much more variable than humans >>>100%Correct
answer>>> fruit flies
patterns of genetic variation can be described by ____________
>>>100%Correct answer>>> allele frequencies
What can cause genetic variation? >>>100%Correct answer>>> a
mutation
two types of mutations >>>100%Correct answer>>> somatic and germ
line
mutations can be ___________ >>>100%Correct answer>>>
deleterious, neutral, or advantageous
recombination >>>100%Correct answer>>> gives new combinations
not present in the parent population
allele frequency >>>100%Correct answer>>> # of copies of an allele /
total # of alleles in a population
What is the frequency of a in this population?
50% aa 25 % Aa 25% aa >>>100%Correct answer>>> 62.5%
, Natural selection can be ___________, ____________, or _____________
>>>100%Correct answer>>> positive, negative, or balancing
natural selection >>>100%Correct answer>>> the change in an allele's
frequency over time based on that particular allele's impact on survival and
reproduction
Natural selection occurs when individuals with certain traits ____________
________ ____________ than do individuals without those traits.
>>>100%Correct answer>>> produce more offspring
heterozygote advantage >>>100%Correct answer>>> case where the
fitness of the heterozygote is superior to that of the homozygote
3 kinds of natural selection >>>100%Correct answer>>> stabilizing
selection, directional selection, disruptive selection
stabilizing selection >>>100%Correct answer>>> selects against both
extremes
directional selection >>>100%Correct answer>>> selects against one of
the two extremes
disruptive selection >>>100%Correct answer>>> selects against the
mean
artificial selection >>>100%Correct answer>>> selection by a breeder
rather than by competition
____________, _______________, ____________ __________, and
_________________ _____________ are non adaptive mechanisms of
evolution >>>100%Correct answer>>> migration, mutation, genetic drift,
non-random mating
small populations have problems with ______ because random events
have a disproportionately heavy impact >>>100%Correct answer>>>
drift
