AnswersFL-2000310-Biology 1 BThe Basis of DNA Technology

The Basis of DNA Technology Answers

0 verified answers1 views
1
Free Preview

Human growth hormone is genetically engineered and inserted into human tissue to help stimulate growth in people with dwarfism. What are possible concerns that scientists have about the long-term effects of this process?

A
whether it will mutate
B
whether it will result in allergens
C
how it will impact nutrition
D
how it will enhance disease resistance
2
Free Preview

Which describes a potential benefit for the environment that stems from genetic engineering?

A
change in nontarget organisms
B
pharmaceutics
C
phytoremediation
D
temperature resistance
3

The insertion of the human insulin gene into the bacterium Escherichia coli allowed it to produce human insulin. Which type of organism is E. coli?

A
restriction organism
B
recombinant organism
C
transgenic organism
D
vector organism
4

Which is an advantage of genetic engineering?

A
lack of labeling of food products that have been genetically engineered
B
diminished opportunities for organic agriculture
C
lack of long-term studies on food safety and environmental impact
D
diminished effects of diseases on crops
5

According to advocates for the use of genetic engineering, which is an example of the importance of recombinant DNA technology?

A
Genes from nuts used in other organisms can affect allergies.
B
The increase of patents drives the seed cost.
C
There is a diminished opportunity for organic agriculture.
D
There is a reduced use of pesticides, herbicides, and fertilizers.
6

What is the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait?

A
isolate more recombinant DNA
B
use electrophoresis to separate more recombinant DNA
C
clone the recombinant DNA in a biological vector
D
use restriction enzymes to cut the recombinant DNA into fragments
7

Which best explains why DNA technology is important for disease prevention?

A
It can help detect if a person is prone to certain diseases.
B
It can manipulate genes to express desirable traits.
C
It can treat diseases with the help of genetically modified food.
D
It can increase the genetic diversity of a species.
8

Scientists have recently modified the bacteria that cause tooth decay by inserting a fragment of DNA into the bacteria's DNA that prevents it from producing lactic acid. What is the new DNA called?

A
foreign DNA
B
restriction DNA
C
recombinant DNA
D
transgenic DNA
9

Which is the role of restriction enzymes?

A
to isolate the selected gene
B
to cut DNA into fragments of different lengths
C
to move and separate the strands of DNA
D
to join the sticky ends of DNA fragments
10

Scientists have been able to inject the firefly's lighting gene into a tobacco plant, allowing it to glow. Which type of organism is this tobacco plant?

A
recombinant organism
B
restriction organism
C
vector organism
D
transgenic organism

Did you find these answers helpful?