BIOL 1407 Lecture Exam #1 Question
Bank
_______ is the remaining supply of genetic variation. - ANS-Mutation.
________ selection is a form of sexual choice based totally on equal-intercourse opposition
generally concerning men, wherein winner "gains" a mating partner. - ANS-Intrasexual.
_________ evolution takes place when two species from one-of-a-kind lineages
independently evolve similar characteristics because they occupy comparable environments.
- ANS-Convergent.
_________ is the nation of a cellular or organism having greater than paired units of
chromosomes. - ANS-Polyploidy.
_________ isolation is some other term for environmental isolation. - ANS-Ecological.
_________ selection favors people with intermediate phenotypes and selects against
individuals with extreme phenotypes. - ANS-Stabilizing.
_________ choice is a kind of natural selection in which opposition for pals drives the
evolution of certain trends. - ANS-Sexual
__________ selection favors individuals at one intense of a phenotypic variety. Those
people generally have extra reproductive success in a selected surroundings. -
ANS-Directional.
___________ and ________ __________ are ends of the continuum of the tempo of
evolutionary change. - ANS-Gradualism; punctuated equilibrium
A deer's antlers, a ram's horns and the carry plumage of a male paradise bird are all
examples of which of the following? - ANS-Secondary sexual traits.
A lengthy length of little or no evolutionary trade in a species is referred to as: - ANS-Stasis.
A reputedly essential complicated structure can evolve through natural choice because: -
ANS-As natural selection acts to modify a complicated device, the machine is practical at
each evolutionary level.
A apparently irreducible complex shape can evolve with the aid of herbal selection due to the
fact: - ANS-As herbal choice acts to regulate a complicated machine, the device is useful at
each evolutionary degree.
A kind of sexual choice in which participants of 1 sex, typically women, pick out mates
primarily based on particular traits along with courtship songs is known as: - ANS-Intersexual
selection.
According to the __________ species idea, species are distinguished via whether or not
gene drift occurs among populations. - ANS-Biological.
Although the organic species concept may be beneficial when distinguishing among species,
it is not as powerful whilst relating organisms that normally undergo ________ with different
species and bring possible offspring. - ANS-Hybridization/Mating
As a end result of convergent evolution, many marsupial mammals of Australia look much
like _________ mammals determined someplace else and occupy a comparable ecological
niche. - ANS-Placental.
As a result of epistasis, the selective advantage of an allele: - ANS-Would vary from one
genotype to any other.
, Assortive mating adjustments ________ frequencies but does no longer exchange
_________ frequencies. - ANS-Genotype; allele
B-Catenin, Bmp4, Ptchl, and Lbh are genes that determine the dimensions and form of the
cichlid: - ANS-Jaw.
By favoring special phenotypes at exceptional times, oscillating selection acts in which
manner? - ANS-It continues genetic version in a population.
Changes in allele frequencies within a population can also result from _________, which
might be modifications in the nucleotide sequences of an organism's DNA. - ANS-Mutations.
Choose all of the components of fitness from the listing under. - ANS-Individual survival,
mating success, and production of feasible, severa offspring.
Consider a gene with the two alleles, A1 and A2. If the health of A1A2 individuals is better
than the fitness of each A1A1 and A2A2, we're looking at: - ANS-Heterozygote benefit.
Consider two populations (populace A and populace B) of the identical plant species and the
gene Xx. Researchers discover that there's regular float of the x allele from population B into
population A. This allele takes place to be negative to individuals in population A because of
the local soil situations. In this situation gene waft: - ANS-Appears to be contrasting
evolutionary change.
Darwin's _________ probable developed after an ancestral species colonized the
Galápagos Islands and underwent person displacement as they tailored to vacant ecological
________ to be had. - ANS-Finches; niches
Darwin's principle of evolution is: - ANS-Not regularly occurring by means of every body in
the general public.
Developmental styles visible in a collection of organisms often display evolutionary
relationships. Place the developmental descriptions within the order that they would arise in
a group of associated organisms, beginning with the earliest description at the top. -
ANS-Greatest similarity is gift
Different characteristics are lost or shaped
Final form is attained
Early horses had 4 ft on the front toes and three feet inside the hind toes, all encased in
fleshy pads. What assertion successfully describes how the binds have changed at some
point of the evolution of modern-day horses? - ANS-Modern horses have a single toe
enclosed in a bony hoof.
Early horses inhabited woods regions wherein they likely browsed leaves and escaped
predators via dodging via openings; this explains why the ones animals had ________ toes
and __________ legs. - ANS-Broad; brief
Economically important organisms which have been changed drastically via artificial choice
consist of: - ANS-Cattle
Pigs
Corn
Even even though there are gaps within the fossil file, some of the maximum direct evidence
for evolution comes from fossils known as ________ that illustrate how sure most important
adjustments in lifestyles forms befell. - ANS-Transitional
Intermediate
Evolutionary trade can't arise in populations with out a _______ variant. - ANS-Genetic.
Evolutionary change inside a populace can end result from which of the subsequent? -
ANS-Natural choice
Migration
Mutations
Bank
_______ is the remaining supply of genetic variation. - ANS-Mutation.
________ selection is a form of sexual choice based totally on equal-intercourse opposition
generally concerning men, wherein winner "gains" a mating partner. - ANS-Intrasexual.
_________ evolution takes place when two species from one-of-a-kind lineages
independently evolve similar characteristics because they occupy comparable environments.
- ANS-Convergent.
_________ is the nation of a cellular or organism having greater than paired units of
chromosomes. - ANS-Polyploidy.
_________ isolation is some other term for environmental isolation. - ANS-Ecological.
_________ selection favors people with intermediate phenotypes and selects against
individuals with extreme phenotypes. - ANS-Stabilizing.
_________ choice is a kind of natural selection in which opposition for pals drives the
evolution of certain trends. - ANS-Sexual
__________ selection favors individuals at one intense of a phenotypic variety. Those
people generally have extra reproductive success in a selected surroundings. -
ANS-Directional.
___________ and ________ __________ are ends of the continuum of the tempo of
evolutionary change. - ANS-Gradualism; punctuated equilibrium
A deer's antlers, a ram's horns and the carry plumage of a male paradise bird are all
examples of which of the following? - ANS-Secondary sexual traits.
A lengthy length of little or no evolutionary trade in a species is referred to as: - ANS-Stasis.
A reputedly essential complicated structure can evolve through natural choice because: -
ANS-As natural selection acts to modify a complicated device, the machine is practical at
each evolutionary level.
A apparently irreducible complex shape can evolve with the aid of herbal selection due to the
fact: - ANS-As herbal choice acts to regulate a complicated machine, the device is useful at
each evolutionary degree.
A kind of sexual choice in which participants of 1 sex, typically women, pick out mates
primarily based on particular traits along with courtship songs is known as: - ANS-Intersexual
selection.
According to the __________ species idea, species are distinguished via whether or not
gene drift occurs among populations. - ANS-Biological.
Although the organic species concept may be beneficial when distinguishing among species,
it is not as powerful whilst relating organisms that normally undergo ________ with different
species and bring possible offspring. - ANS-Hybridization/Mating
As a end result of convergent evolution, many marsupial mammals of Australia look much
like _________ mammals determined someplace else and occupy a comparable ecological
niche. - ANS-Placental.
As a result of epistasis, the selective advantage of an allele: - ANS-Would vary from one
genotype to any other.
, Assortive mating adjustments ________ frequencies but does no longer exchange
_________ frequencies. - ANS-Genotype; allele
B-Catenin, Bmp4, Ptchl, and Lbh are genes that determine the dimensions and form of the
cichlid: - ANS-Jaw.
By favoring special phenotypes at exceptional times, oscillating selection acts in which
manner? - ANS-It continues genetic version in a population.
Changes in allele frequencies within a population can also result from _________, which
might be modifications in the nucleotide sequences of an organism's DNA. - ANS-Mutations.
Choose all of the components of fitness from the listing under. - ANS-Individual survival,
mating success, and production of feasible, severa offspring.
Consider a gene with the two alleles, A1 and A2. If the health of A1A2 individuals is better
than the fitness of each A1A1 and A2A2, we're looking at: - ANS-Heterozygote benefit.
Consider two populations (populace A and populace B) of the identical plant species and the
gene Xx. Researchers discover that there's regular float of the x allele from population B into
population A. This allele takes place to be negative to individuals in population A because of
the local soil situations. In this situation gene waft: - ANS-Appears to be contrasting
evolutionary change.
Darwin's _________ probable developed after an ancestral species colonized the
Galápagos Islands and underwent person displacement as they tailored to vacant ecological
________ to be had. - ANS-Finches; niches
Darwin's principle of evolution is: - ANS-Not regularly occurring by means of every body in
the general public.
Developmental styles visible in a collection of organisms often display evolutionary
relationships. Place the developmental descriptions within the order that they would arise in
a group of associated organisms, beginning with the earliest description at the top. -
ANS-Greatest similarity is gift
Different characteristics are lost or shaped
Final form is attained
Early horses had 4 ft on the front toes and three feet inside the hind toes, all encased in
fleshy pads. What assertion successfully describes how the binds have changed at some
point of the evolution of modern-day horses? - ANS-Modern horses have a single toe
enclosed in a bony hoof.
Early horses inhabited woods regions wherein they likely browsed leaves and escaped
predators via dodging via openings; this explains why the ones animals had ________ toes
and __________ legs. - ANS-Broad; brief
Economically important organisms which have been changed drastically via artificial choice
consist of: - ANS-Cattle
Pigs
Corn
Even even though there are gaps within the fossil file, some of the maximum direct evidence
for evolution comes from fossils known as ________ that illustrate how sure most important
adjustments in lifestyles forms befell. - ANS-Transitional
Intermediate
Evolutionary trade can't arise in populations with out a _______ variant. - ANS-Genetic.
Evolutionary change inside a populace can end result from which of the subsequent? -
ANS-Natural choice
Migration
Mutations
