Biotechnology MCQ
1. In order to express eukaryotic genes in a bacterium, the __________ must first be removed.
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2. Cloning human genes into the plasmids of bacteria has enabled scientists to __________.
Answer
Correct Answer:
Use bacteria as
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3. Even-aged management practices involves clearing trees that _______.
Answer
Correct Answer:
Are all near the same age
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4. The science that integrates all aspects of biology is called _________.
Answer
Correct Answer:
Conservation biology
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5. The polymerase chain reaction (pcr) can be used to produce __________ of copies in a few hours.
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6. Reverse transcriptase produces __________ from an rna template.
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7. On one strand of dna, one nucleotide is linked to the next through _____.
Answer
Correct Answer:
Covalent bonds between the sugar of one nucleotide and the phosphate of the next
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8. Altering the dna of a species changes the ____ that a cell makes
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9. Genetically modifying human ______ cells may directly affect future generations.
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10. Ethical dilemmas raised by dna technology and knowledge of the human genome include ______.
Answer
Correct Answer:
All of the above
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11. Dna microarrays have made a huge impact on genomic studies because they _____.
Answer
Correct Answer:
Allow the expression of many or even all of the genes in the genome to be compared at once.
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12. Classical biotechnology dates back about _____ years ago.
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13. When plasmids are used to produce a desired protein, the ______.
Answer
Correct Answer:
Desired gene is inserted into the plasmid and the plasmid is taken up by the bacterium
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14. To make restriction fragments, a dna sample is treated with ______.
Answer
Correct Answer:
Restriction enzymes
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15. Plasmid vectors often contain __________ genes that can be used to screen for recombinants.
Answer
Correct Answer:
Antibiotic resistance
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16. In order to insert a human gene into a plasmid, both must _____
Answer
Correct Answer:
Be cut by the same restriction enzyme
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17. Genetic recombination involves the use of ____ enzymes to cut out segments of dna.
Answer
Correct Answer:
Restriction endonuclease
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18. Gel electrophoresis separates dna fragments on the basis of differences in their ________.
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19. In gel electrophoresis dna molecules migrate from _____ to _____ ends of the gel.
Answer
Correct Answer:
Negative ... positive
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20. Free-living organisms in the environment that contain a foreign gene are called ____.
Answer
Correct Answer:
Transgenic
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21. Many identical copies of genes cloned in bacteria are produced as a result of _____.
Answer
Correct Answer:
Plasmid and bacterial cell replication
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22. Human insulin is produced in large quantities by __________.
Answer
Correct Answer:
Recombinant E. coli bacteria grown in large fermentation vats
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23. """sticky ends"" are produced as a result of the action of ______.
Answer
Correct Answer:
A restriction enzyme
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24. Restriction enzymes are obtained from ______
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25. During hybridization, _____.
Answer
Correct Answer:
Two organisms with desired traits are bred together
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26. If your ________ is activated, you will feel relatively at ease.
Answer
Correct Answer:
Parasympathetic nervous system
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27. Biotechnology is the use of _______ to improve products and processes.
Answer
Correct Answer:
All of the above
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Biology MCQs | Topic-wise
