UConn Bio 1108 Final Exam Quiz and
Lecture Questions With Correct
Answers
Which one of the following is a selective advantage of simple
| | | | | | | | | | |
multicellularity over single-celled | |
organisms? - CORRECT ANSWER✔✔-Multicellularity helps organisms
| | | | | |
avoid predation.
|
Which one of the following organisms has coenocytic organization? -
| | | | | | | | | |
CORRECT ANSWER✔✔-some green algae
| | |
Why do mitochondria and chloroplasts have small genome? - CORRECT
| | | | | | | | | |
ANSWER✔✔-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: - CORRECT
| | | | | | | | | |
ANSWER✔✔-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? - CORRECT ANSWER✔✔-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? - CORRECT ANSWER✔✔-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? - CORRECT ANSWER✔✔-a prezygotic
| | | | | | | |
isolating mechanism |
How are two different species most likely to evolve from one ancestral
| | | | | | | | | | | |
species? - CORRECT ANSWER✔✔-allopatrically, after the ancestral
| | | | | | |
species has split into two populations
| | | | |
polytomy is a graphical depiction of what type of relationship between
| | | | | | | | | | |
groups? - CORRECT ANSWER✔✔-The common ancestor node with no
| | | | | | | | |
resolution among descendant groups. | | |
One reason we see relatively little genetic variation among human
| | | | | | | | | |
regional populations |
is that: - CORRECT ANSWER✔✔-humans migrated out of Africa so
| | | | | | | | | |
recently that we haven't had enough time
| | | | | |
for regional variation to accumulate
| | | |
Lecture Questions With Correct
Answers
Which one of the following is a selective advantage of simple
| | | | | | | | | | |
multicellularity over single-celled | |
organisms? - CORRECT ANSWER✔✔-Multicellularity helps organisms
| | | | | |
avoid predation.
|
Which one of the following organisms has coenocytic organization? -
| | | | | | | | | |
CORRECT ANSWER✔✔-some green algae
| | |
Why do mitochondria and chloroplasts have small genome? - CORRECT
| | | | | | | | | |
ANSWER✔✔-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: - CORRECT
| | | | | | | | | |
ANSWER✔✔-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? - CORRECT ANSWER✔✔-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? - CORRECT ANSWER✔✔-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? - CORRECT ANSWER✔✔-a prezygotic
| | | | | | | |
isolating mechanism |
How are two different species most likely to evolve from one ancestral
| | | | | | | | | | | |
species? - CORRECT ANSWER✔✔-allopatrically, after the ancestral
| | | | | | |
species has split into two populations
| | | | |
polytomy is a graphical depiction of what type of relationship between
| | | | | | | | | | |
groups? - CORRECT ANSWER✔✔-The common ancestor node with no
| | | | | | | | |
resolution among descendant groups. | | |
One reason we see relatively little genetic variation among human
| | | | | | | | | |
regional populations |
is that: - CORRECT ANSWER✔✔-humans migrated out of Africa so
| | | | | | | | | |
recently that we haven't had enough time
| | | | | |
for regional variation to accumulate
| | | |
