Biology 1108 Final Exam Quiz Questions
With solved Solutions
The term "n" refers to the size of a population, that is, the number of individuals
in that population. In general, in a sample of n individuals, the frequency of an
allele is: - ANSWER>>the number of occurrences of the allele divided by twice the
number of individuals in the sample (2n)
If a population is not in Hardy-Weinberg equilibrium, we can conclude that: -
ANSWER>>evolution has occurred because one of the assumptions of the Hardy-
Weinberg equilibrium has been violated
The goldenrod gall fly lays its eggs on the terminal buds of goldenrod plants.
Larvae chew through the buds and into the stems, where their saliva induces the
plant to generate a gall (an outgrowth of tissue). This gall then provides food and
shelter for the developing larva. The larvae are prey of both parasitoid wasps and
birds. Wasps selectively prey on larvae inside the smallest galls while the birds
selectively prey on the larvae inside the largest galls. Goldenrod gall files are
therefore subject to: - ANSWER>>stabilizing selection
You find that a wild population of antelope is not in Hardy-Weinberg Equilibrium.
From this information alone, can you determine the mechanism of evolution
operating on the population? - ANSWER>>no
A population with a novel adaptation has evolved that adaptation. -
ANSWER>>true
Polytomy is a graphical depiction of what type of relationship between groups? -
ANSWER>>The common ancestor node with no resolution among descendant
groups.
, Phylogenetic trees are: - ANSWER>>both a and b are correct (hypotheses and
built using observed data)
Which phylogenic group includes all descendants of a common ancestor and only
the descendants of that ancestor? - ANSWER>>monophyletic
When comparing trees with various hypotheses of evolutionary relationships
between a group of animals, the tree with _____ would be the strongest
candidate. - ANSWER>>the fewest changes
A fossil's contribution to phylogenetic trees include: - ANSWER>>all of the above
(time calibration, records of extinct species, correlation between evolution and
Earth history)
How are two different species most likely to evolve from one ancestral species? -
ANSWER>>allopatrically, after the ancestral species has split into two populations
Three populations of crickets look very similar, but the males have courtship
songs that sound different. What function would this difference in song likely
serve if the populations came in contact? - ANSWER>>a pre-zygotic isolating
mechanism
A polytomy is a graphical depiction of what type of relationship between groups?
- ANSWER>>the common ancestor node with no resolution among descendant
groups
The peppered moth provides a well-known example of natural selection. The
light-colored form of the moth was predominant in England before the industrial
revolution. In the mid-19th Century, a dark-colored form appeared. The
difference is produced by a dominant allele of 1 gene. By about 1900, about 90%
of the moths around industrial areas were dark-colored, whereas light-colored
moths were still abundant elsewhere. Apparently, birds could readily find the light
moths against the soot-darkened background in industrial areas and therefore
With solved Solutions
The term "n" refers to the size of a population, that is, the number of individuals
in that population. In general, in a sample of n individuals, the frequency of an
allele is: - ANSWER>>the number of occurrences of the allele divided by twice the
number of individuals in the sample (2n)
If a population is not in Hardy-Weinberg equilibrium, we can conclude that: -
ANSWER>>evolution has occurred because one of the assumptions of the Hardy-
Weinberg equilibrium has been violated
The goldenrod gall fly lays its eggs on the terminal buds of goldenrod plants.
Larvae chew through the buds and into the stems, where their saliva induces the
plant to generate a gall (an outgrowth of tissue). This gall then provides food and
shelter for the developing larva. The larvae are prey of both parasitoid wasps and
birds. Wasps selectively prey on larvae inside the smallest galls while the birds
selectively prey on the larvae inside the largest galls. Goldenrod gall files are
therefore subject to: - ANSWER>>stabilizing selection
You find that a wild population of antelope is not in Hardy-Weinberg Equilibrium.
From this information alone, can you determine the mechanism of evolution
operating on the population? - ANSWER>>no
A population with a novel adaptation has evolved that adaptation. -
ANSWER>>true
Polytomy is a graphical depiction of what type of relationship between groups? -
ANSWER>>The common ancestor node with no resolution among descendant
groups.
, Phylogenetic trees are: - ANSWER>>both a and b are correct (hypotheses and
built using observed data)
Which phylogenic group includes all descendants of a common ancestor and only
the descendants of that ancestor? - ANSWER>>monophyletic
When comparing trees with various hypotheses of evolutionary relationships
between a group of animals, the tree with _____ would be the strongest
candidate. - ANSWER>>the fewest changes
A fossil's contribution to phylogenetic trees include: - ANSWER>>all of the above
(time calibration, records of extinct species, correlation between evolution and
Earth history)
How are two different species most likely to evolve from one ancestral species? -
ANSWER>>allopatrically, after the ancestral species has split into two populations
Three populations of crickets look very similar, but the males have courtship
songs that sound different. What function would this difference in song likely
serve if the populations came in contact? - ANSWER>>a pre-zygotic isolating
mechanism
A polytomy is a graphical depiction of what type of relationship between groups?
- ANSWER>>the common ancestor node with no resolution among descendant
groups
The peppered moth provides a well-known example of natural selection. The
light-colored form of the moth was predominant in England before the industrial
revolution. In the mid-19th Century, a dark-colored form appeared. The
difference is produced by a dominant allele of 1 gene. By about 1900, about 90%
of the moths around industrial areas were dark-colored, whereas light-colored
moths were still abundant elsewhere. Apparently, birds could readily find the light
moths against the soot-darkened background in industrial areas and therefore
