bio 12
問題一覧
1
Based on the pedigree chart, what should you assume about the parental generation?
The mother was a carrier for a sex-linked disease.
2
Channels within the structure of the cell membrane are composed of
proteins
3
There are many people opposed to stem cell research based on ethical grounds. This is because the stem cells are most often taken from human embryos. However, many are still in favor of stem cell research. One of the reasons is
That stem cells can treat diseases with no other cure.
4
Which of these is an ethical issue associated with stem cell therapy?
Embryos are destroyed when stem cells are obtained from them.
5
How can the knowledge of the human genome be useful for in-vitro fertilization techniques?
Fertilized eggs that are disease-free can be identified and used.
6
Scientists can use DNA sequences to identify potential health risks such as susceptibility to certain cancers in individuals. What would be an ethical concern associated with this biotechnology?
Medical insurance companies denying certain individuals insurance due to their DNA profiles
7
Scientists have been genetically modifying food crops since the mid 1990's. As a result, scientists have been able to produce crops that are more disease resistant. What could be seen as a risk associated with using genetically modified crops?
Crops may cause an increase in allergic reactions in humans
8
What biotechnologies were used to insert the target gene into the loop of DNA and put the result into bacteria? Choose 2.
Restriction-enzyme digest, Plasmid-based transformation
9
The karyotype shown represents a genetic disorder. This disorder is most likely a result of.
A deletion in an autosome
10
The karyotype below shows an altered chromosome number. What is the cause of this chromosomal abnormality?
nondisjunction
11
A normal female human karyotype would include which of the following?
46 total chromosomes with the sex chromosomes X and X
12
When scientists perform ligation reactions to join the human insulin gene with a bacterial plasmid, the resulting product is called what?
recombinant DNA
13
Since 2008, GMO crops have accounted for more than 80% of the corn and soybean crops planted in the U.S. Corn (maize) seeds are modified with two genes: one kills insects that eat the seed, and one allows the seed to tolerate glyphosate, a herbicide commonly used in weed killers like Roundup. Soybeans are modified with just one glyphosate-resistant gene. Since 2008, scientists at the University of Virginia have been monitoring the effects of planting GMO corn and soybeans within farm ecosystems. The UVA study found evidence that both corn and soybean farmers have increased herbicide use during the last five years, and the scientists concluded that planting these GMO crops is having a negative impact on the local environment. Why?
Which choice does NOT support that the conclusion that the herbicides are having a negative impact?
The cultivation of GMO's led to a significant increase of yield compared to the non-GMO varieties.
14
Chemotherapy is a standard measure of care for different cancers. In general, chemotherapy targets rapidly dividing cells and therefore has detrimental side effects such as nausea, vomiting and hair loss. Advances in science have led to more targeted therapies that analyze individual patient's tumors to identify specific gene mutations. The hope is that with more targeted therapies, patients will suffer less side effects and have better treatment outcomes. The technology associated with these advances involves what technique?
DNA sequencing
15
In order to treat diabetes, scientists have engineered recombinant DNA: that is they have inserted the human insulin gene into a bacterial plasmid. The ability of a bacterial cell to produce a functional human protein is evidence of what?
DNA bases are conserved across all species
16
Companies like 23 and me advertise use of their DNA sequencing techniques to "explore your link to the past with the new Historical Matches feature". Illegal breeches such as those by computer hackers as well as legal uses such as law enforcement creating genetic genealogy family trees to identify unknown DNA samples highlight what major concern of this technology?
privacy issues
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問題一覧
1
Based on the pedigree chart, what should you assume about the parental generation?
The mother was a carrier for a sex-linked disease.
2
Channels within the structure of the cell membrane are composed of
proteins
3
There are many people opposed to stem cell research based on ethical grounds. This is because the stem cells are most often taken from human embryos. However, many are still in favor of stem cell research. One of the reasons is
That stem cells can treat diseases with no other cure.
4
Which of these is an ethical issue associated with stem cell therapy?
Embryos are destroyed when stem cells are obtained from them.
5
How can the knowledge of the human genome be useful for in-vitro fertilization techniques?
Fertilized eggs that are disease-free can be identified and used.
6
Scientists can use DNA sequences to identify potential health risks such as susceptibility to certain cancers in individuals. What would be an ethical concern associated with this biotechnology?
Medical insurance companies denying certain individuals insurance due to their DNA profiles
7
Scientists have been genetically modifying food crops since the mid 1990's. As a result, scientists have been able to produce crops that are more disease resistant. What could be seen as a risk associated with using genetically modified crops?
Crops may cause an increase in allergic reactions in humans
8
What biotechnologies were used to insert the target gene into the loop of DNA and put the result into bacteria? Choose 2.
Restriction-enzyme digest, Plasmid-based transformation
9
The karyotype shown represents a genetic disorder. This disorder is most likely a result of.
A deletion in an autosome
10
The karyotype below shows an altered chromosome number. What is the cause of this chromosomal abnormality?
nondisjunction
11
A normal female human karyotype would include which of the following?
46 total chromosomes with the sex chromosomes X and X
12
When scientists perform ligation reactions to join the human insulin gene with a bacterial plasmid, the resulting product is called what?
recombinant DNA
13
Since 2008, GMO crops have accounted for more than 80% of the corn and soybean crops planted in the U.S. Corn (maize) seeds are modified with two genes: one kills insects that eat the seed, and one allows the seed to tolerate glyphosate, a herbicide commonly used in weed killers like Roundup. Soybeans are modified with just one glyphosate-resistant gene. Since 2008, scientists at the University of Virginia have been monitoring the effects of planting GMO corn and soybeans within farm ecosystems. The UVA study found evidence that both corn and soybean farmers have increased herbicide use during the last five years, and the scientists concluded that planting these GMO crops is having a negative impact on the local environment. Why?
Which choice does NOT support that the conclusion that the herbicides are having a negative impact?
The cultivation of GMO's led to a significant increase of yield compared to the non-GMO varieties.
14
Chemotherapy is a standard measure of care for different cancers. In general, chemotherapy targets rapidly dividing cells and therefore has detrimental side effects such as nausea, vomiting and hair loss. Advances in science have led to more targeted therapies that analyze individual patient's tumors to identify specific gene mutations. The hope is that with more targeted therapies, patients will suffer less side effects and have better treatment outcomes. The technology associated with these advances involves what technique?
DNA sequencing
15
In order to treat diabetes, scientists have engineered recombinant DNA: that is they have inserted the human insulin gene into a bacterial plasmid. The ability of a bacterial cell to produce a functional human protein is evidence of what?
DNA bases are conserved across all species
16
Companies like 23 and me advertise use of their DNA sequencing techniques to "explore your link to the past with the new Historical Matches feature". Illegal breeches such as those by computer hackers as well as legal uses such as law enforcement creating genetic genealogy family trees to identify unknown DNA samples highlight what major concern of this technology?
privacy issues