UConn Bio 1108 Final Exam Quiz and Lecture 107
Questions and correct Answers RATED A+ ,.
Which one of the following is a selective advantage of simple multicellularity over single-celled
organisms? -
** Multicellularity helps organisms avoid predation.
Which one of the following organisms has coenocytic organization? -
** some green algae
Why do mitochondria and chloroplasts have small genome? -
** They have small genomes because over time, much of their nucleic acid has migrated to the host
cell
nucleus.
Some slime molds make structures called plasmodia which: -
** contain many nuclei in one large cell.
Chloroplasts have outer and an inner membranes that separate the stroma and thylakoids from the
cytoplasm. What is believed to be the origin of the outer membrane of the chloroplast? -
** It is the remnant of the ancient host cell's plasma membrane following endocytosis of the
cyanobacteria.
The peppered moth provides a well-known example of natural selection. The lightcolored
form of the moth was predominant in England before the industrial revolution. In
the mid-nineteenth century, a dark-colored form appeared. The difference is produced by
a dominant allele of one gene. By about 1900, approximately 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 were eating more light moths. Recently, use
of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths
,have been disappearing. Should the two forms of moths be considered separate species? -
** No
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? -
** a prezygotic isolating mechanism
How are two different species most likely to evolve from one ancestral species? -
** allopatrically, after the ancestral species has split into two populations
polytomy is a graphical depiction of what type of relationship between groups? -
** The common ancestor node with no resolution among descendant groups.
One reason we see relatively little genetic variation among human regional populations
is that: -
** humans migrated out of Africa so recently that we haven't had enough time
for regional variation to accumulate
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 -
** he 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: -
** 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 birds selectively prey on larvae inside the largest galls.
Goldenrod gall flies are therefore subject to -
** stabilizing selection.
You find that a wild population of antelope is not in HWE. From this
information alone, can you determine the mechanism of evolution
operating on the population? -
** no
Regarding the laboratory exercise this week, which Hominin had the
largest relative volume in its cranium? -
** Homo sapiens neanderthalensis
A college student walks down New York City's Fifth Avenue at 8:00 AM. She is late for class so she
catches the bus for the last 2 miles of her commute. Did she have a larger ecological footprint when
she
was walking or when she was on the bus? -
** More information is needed about, for example, the number of people on the bus and its fuel
source, to accurately determine her ecological footprint in both situations
Under the "business as usual" model of climate change, will temperatures change uniformly across
the
globe? Examine Figure 48.7 in your text and compare the projected change in temperature in central
South
America and central Africa at the equator (draw an imaginary line across the globe at its widest point
and
examine a spot in the middle of each continent along that line). Which of the following best
describes the
Questions and correct Answers RATED A+ ,.
Which one of the following is a selective advantage of simple multicellularity over single-celled
organisms? -
** Multicellularity helps organisms avoid predation.
Which one of the following organisms has coenocytic organization? -
** some green algae
Why do mitochondria and chloroplasts have small genome? -
** They have small genomes because over time, much of their nucleic acid has migrated to the host
cell
nucleus.
Some slime molds make structures called plasmodia which: -
** contain many nuclei in one large cell.
Chloroplasts have outer and an inner membranes that separate the stroma and thylakoids from the
cytoplasm. What is believed to be the origin of the outer membrane of the chloroplast? -
** It is the remnant of the ancient host cell's plasma membrane following endocytosis of the
cyanobacteria.
The peppered moth provides a well-known example of natural selection. The lightcolored
form of the moth was predominant in England before the industrial revolution. In
the mid-nineteenth century, a dark-colored form appeared. The difference is produced by
a dominant allele of one gene. By about 1900, approximately 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 were eating more light moths. Recently, use
of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths
,have been disappearing. Should the two forms of moths be considered separate species? -
** No
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? -
** a prezygotic isolating mechanism
How are two different species most likely to evolve from one ancestral species? -
** allopatrically, after the ancestral species has split into two populations
polytomy is a graphical depiction of what type of relationship between groups? -
** The common ancestor node with no resolution among descendant groups.
One reason we see relatively little genetic variation among human regional populations
is that: -
** humans migrated out of Africa so recently that we haven't had enough time
for regional variation to accumulate
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 -
** he 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: -
** 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 birds selectively prey on larvae inside the largest galls.
Goldenrod gall flies are therefore subject to -
** stabilizing selection.
You find that a wild population of antelope is not in HWE. From this
information alone, can you determine the mechanism of evolution
operating on the population? -
** no
Regarding the laboratory exercise this week, which Hominin had the
largest relative volume in its cranium? -
** Homo sapiens neanderthalensis
A college student walks down New York City's Fifth Avenue at 8:00 AM. She is late for class so she
catches the bus for the last 2 miles of her commute. Did she have a larger ecological footprint when
she
was walking or when she was on the bus? -
** More information is needed about, for example, the number of people on the bus and its fuel
source, to accurately determine her ecological footprint in both situations
Under the "business as usual" model of climate change, will temperatures change uniformly across
the
globe? Examine Figure 48.7 in your text and compare the projected change in temperature in central
South
America and central Africa at the equator (draw an imaginary line across the globe at its widest point
and
examine a spot in the middle of each continent along that line). Which of the following best
describes the
