Bacterial Resistance and Biotechnology Quiz
Preview:
What is a benefit of producing GMO’s?
A. They are less genetically diverse
B. They are more genetically diverse
C. They can produce more product (milk from cows, food from crops)
D. They produce less product
Scientists have changed the DNA of a type of cabbage so that it contains a tiny amount of poison from a scorpion’s tail. The poison in the cabbage kills caterpillars that try to eat it. This is an example of ____.
A. gene therapy
B. selective breeding
C. genetic engineering
D. artificial selection
A gene for disease resistance in fir trees is transferred to pine trees using modern DNA technology. How might this be economically helpful to tree farmers?
A. Abnormal pine tree growth would be eliminated.
B. Erosion of topsoil would no longer be a concern.
C. Pine trees would be safe from pine beetle attacks.
D. More pine trees would live to maturity, increasing lumber output.
Staph infections, caused by the bacterium Staphylococcus aureus, are increasing in frequency and are more difficult to treat with antibiotics. Many staph infections are now caused by MRSA, and methicillin-resistant strain of S. aureus. What explains the more widespread phenomenon of MRSA prevalence in staph infections?
A. Vaccines became less effective because of the changes in the human immune system
B. Antibiotics caused mutations in the bacteria
C. hospitals decreased their sanitation practices
D. Resistant bacteria already existed from random mutations and the excessive use of antibiotics increased the frequency of the resistant strain
Look at the image. Describe the DNA fragments towards the top of the gel electrophoresis.
A. larger and they move faster
B. smaller and they move faster
C. larger and they move slower
D. smaller and they move slower
How can biotechnology be used to observe DNA between organisms?
A. By using gel electrophoresis to compare genomes
B. By observing DNA under a microscope
C. By comparing blood samples
D. By observing how a vaccine affects each organism
How would Charles Darwin explain the phenomenon of bacterial resistance?
A. The overuse of pesticides/ antibiotics caused them to be resistant
B. Chemicals in pesticides/ antibiotics are not strong enough to kill the insects/ bacteria
C. Insects/ bacteria simply go used to the pesticides/ antibiotics
D. Through random mutations, insects/ bacteria developed resistance
What is the purpose of using gel electrophoresis?
A. Track traits between generations
B. compare genomes between individuals or organisms
C. predict the probability of offspring
D. show the shape of DNA
The process of carefully choosing two organisms to breed in order for their offspring to show specific traits.
A. selective breeding
B. hybridization
C. inbreeding
D. genetic engineering
Process of continuously breeding plants or animals in order to express desirable traits is known as _____________
A. selective breeding
B. inbreeding
C. hybridization
D. genetic engineering
What is a cost of producing GMO’s?
A. They are less genetically diverse
B. They are more genetically diverse
C. They can produce more product (milk from cows, food from crops)
D. They produce less product
Look at the image. Describe the DNA fragments towards the bottom of the gel electrophoresis.
A. larger and they move faster
B. smaller and they move faster
C. larger and they move slower
D. smaller and they move slower
The process of breeding two dissimilar organisms to create a new organism is called _______________
A. selective breeding
B. hybridization
C. genetic engineering
D. inbreeding
Changing an organisms DNA to produce new traits is described as ________________________
A. selective breeding
B. inbreeding
C. genetic engineering
D. gel electrophoresis
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