Gene Cloning

Description: This quiz is designed to assess your understanding of the fundamental concepts and techniques involved in gene cloning.
Number of Questions: 15
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Tags: gene cloning genetic engineering recombinant dna technology molecular biology
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What is the primary purpose of gene cloning?

  1. To create genetically modified organisms

  2. To study gene expression

  3. To produce large quantities of a specific protein

  4. To repair damaged genes


Correct Option: A
Explanation:

Gene cloning is a technique used to create genetically modified organisms by introducing a specific gene or DNA fragment into a host organism.

Which enzyme is commonly used to cut DNA at specific sequences?

  1. Restriction enzymes

  2. DNA ligase

  3. Polymerase chain reaction (PCR)

  4. Reverse transcriptase


Correct Option: A
Explanation:

Restriction enzymes are enzymes that recognize and cut DNA at specific sequences, known as restriction sites.

What is the process of inserting a foreign gene into a host organism called?

  1. Transformation

  2. Transfection

  3. Transduction

  4. Conjugation


Correct Option: A
Explanation:

Transformation is the process of introducing a foreign gene into a host organism by directly introducing the DNA into the cell.

Which vector is commonly used for cloning genes in bacteria?

  1. Plasmid

  2. Cosmid

  3. Bacteriophage

  4. Yeast artificial chromosome (YAC)


Correct Option: A
Explanation:

Plasmids are small, circular DNA molecules that are commonly used as vectors for cloning genes in bacteria.

What is the process of making multiple copies of a specific DNA sequence called?

  1. Polymerase chain reaction (PCR)

  2. DNA sequencing

  3. Southern blotting

  4. Western blotting


Correct Option: A
Explanation:

Polymerase chain reaction (PCR) is a technique used to amplify a specific DNA sequence by making multiple copies of it.

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 by applying an electric current to a gel containing the DNA.

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. Transgenesis


Correct Option: A
Explanation:

Gene transfer is the process of transferring a gene from one organism to another.

Which enzyme is used to join DNA fragments together?

  1. Restriction enzymes

  2. DNA ligase

  3. Polymerase chain reaction (PCR)

  4. Reverse transcriptase


Correct Option: B
Explanation:

DNA ligase is an enzyme that joins DNA fragments together by forming phosphodiester bonds.

What is the term used to describe an organism that contains a foreign gene?

  1. Transgenic organism

  2. Genetically modified organism (GMO)

  3. Recombinant organism

  4. Cloned organism


Correct Option: A
Explanation:

A transgenic organism is an organism that contains a foreign gene that has been introduced into its genome.

Which technique is used to detect the presence of a specific DNA sequence in a sample?

  1. Polymerase chain reaction (PCR)

  2. DNA sequencing

  3. Southern blotting

  4. Western blotting


Correct Option: C
Explanation:

Southern blotting is a technique used to detect the presence of a specific DNA sequence in a sample by transferring DNA fragments from a gel to a nitrocellulose membrane.

What is the term used to describe the process of creating an exact copy of an organism?

  1. Cloning

  2. Transgenesis

  3. Genetic engineering

  4. Recombinant DNA technology


Correct Option: A
Explanation:

Cloning is the process of creating an exact copy of an organism.

Which technique is used to determine the sequence of nucleotides in a DNA molecule?

  1. Polymerase chain reaction (PCR)

  2. DNA sequencing

  3. Southern blotting

  4. Western blotting


Correct Option: B
Explanation:

DNA sequencing is a technique used to determine the sequence of nucleotides in a DNA molecule.

What is the term used to describe the process of introducing a gene into a cell?

  1. Transformation

  2. Transfection

  3. Transduction

  4. Conjugation


Correct Option: A
Explanation:

Transformation is the process of introducing a gene into a cell by directly introducing the DNA into the cell.

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

  1. Polymerase chain reaction (PCR)

  2. DNA sequencing

  3. Southern blotting

  4. Western blotting


Correct Option: D
Explanation:

Western blotting is a technique used to detect the expression of a specific gene by separating proteins based on their size and then using antibodies to detect the presence of a specific protein.

What is the term used to describe the process of creating a genetically modified organism by combining the genetic material of two different organisms?

  1. Hybridization

  2. Transgenesis

  3. Genetic engineering

  4. Recombinant DNA technology


Correct Option: D
Explanation:

Recombinant DNA technology is the process of creating a genetically modified organism by combining the genetic material of two different organisms.

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