BSC 108 test 3
A _______ is a carrier that transports DNA from one cell to another, such as a plasmid. A
community is a group of - ANS-populations
A gene pool is - ANS-All of the alleles in a population
All species that live together in a specific area form a community - ANS-true
An orchid plant lives in the treetops, harming the trees but getting sunlight and pollinators.
This is an example of - ANS-commensalism
Are genetically modified foods in the United States labeled differently from other
foods? - ANS-The united states labels only bulk food whether it has been genetically
modified
or not.
As a mechanism of evolution, natural selection can be most closely equated with -
ANS-unequal reproductive success
Attempts at treating human diseases with gene therapy have not yet been successful -
ANS-FALSE
Complete the following: DNA → ________ → Protein - ANS-RNA
Describe how human gene therapy can cure disease. - ANS-Human gene therapy can cure
diseases if successful allowing the cells to
multiply permanently and produce enough supply of the missing protein. Thishappens by a
gene from an individual being closed and converted to an RNA
version. Then bone marrow is taken from the patient and infected with
viral recombinant The virus inserts a copy of the DNA into the patient's cells.
The engineered cell is the inserted back into the patient producing the needed
protein.
Describe one example of natural selection in action. - ANS-natural selection occurs at the
level of the population, not the individual. Individual organisms do not evolve by natural
selection. Only populations can over the course of generations. For example, if there are
both black and white snails on a black sand beach in Hawaii, the white snails are more likely
to be visible and the black snails would be camouflaged. As the white snails are eaten by
predators, a larger proportion of the snail population over time would be black.
Describe the bottleneck effect. - ANS-If there is a disaster or catastrophe that results in
large population loss than the
genetic drift will be drastically different because there is less population size to
gather alleles from.
Describe the carbon cycle. - ANS-The carbon cycle is the movement of carbon from the
atmosphere into plants during photosynthesis, then the return of carbon back into the
atmosphere during cellular respiration and combustion of fossil fuels.
the population size decreases at higher trophic levels- this is because the energy
conversion efficiency decreases
Identify the five types of evidence of evolution: ANS—fossils—fossilized organisms point to
species that are still in existence as their ancestors. biogeographical similarities- species in
different geographical regions have similar characteristics and adaptations
physical similarities- organisms of different species have similar traits and characteristics
A _______ is a carrier that transports DNA from one cell to another, such as a plasmid. A
community is a group of - ANS-populations
A gene pool is - ANS-All of the alleles in a population
All species that live together in a specific area form a community - ANS-true
An orchid plant lives in the treetops, harming the trees but getting sunlight and pollinators.
This is an example of - ANS-commensalism
Are genetically modified foods in the United States labeled differently from other
foods? - ANS-The united states labels only bulk food whether it has been genetically
modified
or not.
As a mechanism of evolution, natural selection can be most closely equated with -
ANS-unequal reproductive success
Attempts at treating human diseases with gene therapy have not yet been successful -
ANS-FALSE
Complete the following: DNA → ________ → Protein - ANS-RNA
Describe how human gene therapy can cure disease. - ANS-Human gene therapy can cure
diseases if successful allowing the cells to
multiply permanently and produce enough supply of the missing protein. Thishappens by a
gene from an individual being closed and converted to an RNA
version. Then bone marrow is taken from the patient and infected with
viral recombinant The virus inserts a copy of the DNA into the patient's cells.
The engineered cell is the inserted back into the patient producing the needed
protein.
Describe one example of natural selection in action. - ANS-natural selection occurs at the
level of the population, not the individual. Individual organisms do not evolve by natural
selection. Only populations can over the course of generations. For example, if there are
both black and white snails on a black sand beach in Hawaii, the white snails are more likely
to be visible and the black snails would be camouflaged. As the white snails are eaten by
predators, a larger proportion of the snail population over time would be black.
Describe the bottleneck effect. - ANS-If there is a disaster or catastrophe that results in
large population loss than the
genetic drift will be drastically different because there is less population size to
gather alleles from.
Describe the carbon cycle. - ANS-The carbon cycle is the movement of carbon from the
atmosphere into plants during photosynthesis, then the return of carbon back into the
atmosphere during cellular respiration and combustion of fossil fuels.
the population size decreases at higher trophic levels- this is because the energy
conversion efficiency decreases
Identify the five types of evidence of evolution: ANS—fossils—fossilized organisms point to
species that are still in existence as their ancestors. biogeographical similarities- species in
different geographical regions have similar characteristics and adaptations
physical similarities- organisms of different species have similar traits and characteristics
