Plant Biotechnology

Description: Plant Biotechnology Quiz
Number of Questions: 15
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Tags: plant biotechnology genetic engineering agriculture
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Which technique is used to introduce foreign genes into plant cells?

  1. Agrobacterium-mediated transformation

  2. Electroporation

  3. Microinjection

  4. All of the above


Correct Option: D
Explanation:

Agrobacterium-mediated transformation, electroporation, and microinjection are all techniques used to introduce foreign genes into plant cells.

What is the role of the Ti plasmid in Agrobacterium-mediated transformation?

  1. It carries the genes necessary for DNA transfer

  2. It integrates into the plant genome

  3. It produces opines

  4. All of the above


Correct Option: D
Explanation:

The Ti plasmid carries the genes necessary for DNA transfer, integrates into the plant genome, and produces opines.

Which enzyme is used to cut DNA at specific sequences?

  1. Restriction endonuclease

  2. DNA ligase

  3. RNA polymerase

  4. Reverse transcriptase


Correct Option: A
Explanation:

Restriction endonucleases are enzymes that cut DNA at specific sequences.

What is the purpose of a selectable marker gene in plant transformation?

  1. To confer resistance to antibiotics

  2. To allow for the identification of transformed cells

  3. To enhance the expression of the foreign gene

  4. All of the above


Correct Option: D
Explanation:

Selectable marker genes confer resistance to antibiotics, allow for the identification of transformed cells, and enhance the expression of the foreign gene.

Which plant hormone is responsible for promoting cell division and shoot formation?

  1. Auxin

  2. Cytokinin

  3. Gibberellin

  4. Abscisic acid


Correct Option: B
Explanation:

Cytokinin is a plant hormone that promotes cell division and shoot formation.

What is the process of transferring genes from one organism to another called?

  1. Genetic engineering

  2. Recombinant DNA technology

  3. Gene therapy

  4. All of the above


Correct Option: D
Explanation:

Genetic engineering, recombinant DNA technology, and gene therapy are all processes that involve the transfer of genes from one organism to another.

Which technique is used to amplify a specific region of DNA?

  1. Polymerase chain reaction (PCR)

  2. Southern blotting

  3. Northern blotting

  4. Western blotting


Correct Option: A
Explanation:

Polymerase chain reaction (PCR) is a technique used to amplify a specific region of DNA.

What is the role of a promoter in gene expression?

  1. It binds RNA polymerase

  2. It enhances the expression of the gene

  3. It terminates transcription

  4. All of the above


Correct Option: A
Explanation:

A promoter is a region of DNA that binds RNA polymerase and initiates transcription.

Which technique is used to separate DNA fragments based on their size?

  1. Gel electrophoresis

  2. Chromatography

  3. Centrifugation

  4. Spectrophotometry


Correct Option: A
Explanation:

Gel electrophoresis is a technique used to separate DNA fragments based on their size.

What is the role of a terminator in gene expression?

  1. It binds RNA polymerase

  2. It enhances the expression of the gene

  3. It terminates transcription

  4. All of the above


Correct Option: C
Explanation:

A terminator is a region of DNA that signals the end of transcription.

Which plant hormone is responsible for promoting root growth and development?

  1. Auxin

  2. Cytokinin

  3. Gibberellin

  4. Abscisic acid


Correct Option: A
Explanation:

Auxin is a plant hormone that promotes root growth and development.

What is the process of transferring a gene from one organism to another called?

  1. Gene transfer

  2. Genetic engineering

  3. Recombinant DNA technology

  4. All of the above


Correct Option: D
Explanation:

Gene transfer, genetic engineering, and recombinant DNA technology are all processes that involve the transfer of a gene from one organism to another.

Which technique is used to detect the expression of a gene?

  1. Northern blotting

  2. Southern blotting

  3. Western blotting

  4. All of the above


Correct Option: D
Explanation:

Northern blotting, Southern blotting, and Western blotting are all techniques used to detect the expression of a gene.

What is the role of an enhancer in gene expression?

  1. It binds RNA polymerase

  2. It enhances the expression of the gene

  3. It terminates transcription

  4. All of the above


Correct Option: B
Explanation:

An enhancer is a region of DNA that enhances the expression of a gene.

Which plant hormone is responsible for promoting seed germination and seedling growth?

  1. Auxin

  2. Cytokinin

  3. Gibberellin

  4. Abscisic acid


Correct Option: C
Explanation:

Gibberellin is a plant hormone that promotes seed germination and seedling growth.

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