Vectors Multiple Questions and Answers.
Exercise Questions ::
Recombinant DNA Technology
Answer: Option D
Explanation:
Plasmid is the circular bacterial DNA, which carries genes which are useful but not essential for survival. These are said to be extrachromosomal DNA.
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Published by:Michael Daani
Answer: Option D
Explanation:
Cloning vectors are DNA molecules that are used to transport sequences between the host and the donor. Most of the vectors are genetically engineered.
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Published by:Michael Daani
3. Cloning vector has the following properties, except one? A. Contain genetic marker for selection B. Ability to replicate C. Multiple restriction site for entry of DNA D. Contain nonessential DNA to optimize cloning
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Answer: Option C
Explanation:
Cloning vector has a single and unique restriction site for the entry of DNA and facilitate cloning. Cloning vector is used to amplify single molecule of DNA into multiple copies.
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Published by:Michael Daani
4. Which of the following is NOT the characteristics of the plasmid? A. Replicate independently in a host cell B. Selectable marker gene C. Contain single cloning site D. Small in size
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Answer: Option C
Explanation:
These vectors are used to clone DNA that varies in size from several base pairs to several thousand base pairs. It contains multiple cloning sites.
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Published by:Michael Daani
5. Which of the following is TRUE for YAC? A. Recognizes palindromic sequences B. Two fold axial symmetry C. Recognize specific site according to DNA sources D. Derived from DNA of the Yeast
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Answer: Option D
Explanation:
YAC stands for Yeast Artificial Chromosome that is derived from the DNA of the yeast and is ligated to bacterial plasmid by genetic engineering.
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