Biology

Genetic Engineering and Biotechnology

2,010 Questions

Genetic engineering and biotechnology involve modifying organism DNA to develop transgenic crops, medical treatments, and industrial solutions. This field covers essential techniques like hybridoma technology, molecular markers, and gene transfer in eukaryotic cells. These biology topics are essential for aspirants preparing for various competitive examinations.

Genetic engineering techniquesTransgenic organismsIndustrial biotechnologyGMOs and bioremediation

Genetic Engineering and Biotechnology Questions

Multiple choice

How can medical biotechnology contribute to the achievement of the Sustainable Development Goals (SDGs)?

  1. By developing new vaccines and treatments for diseases that disproportionately affect developing countries

  2. By creating biofuels that can help to reduce greenhouse gas emissions

  3. By developing technologies to improve access to healthcare in remote and underserved areas

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Medical biotechnology can contribute to the achievement of the Sustainable Development Goals (SDGs) by developing new vaccines and treatments for diseases that disproportionately affect developing countries, creating biofuels that can help to reduce greenhouse gas emissions, and developing technologies to improve access to healthcare in remote and underserved areas.

Multiple choice

Which of the following is NOT a challenge associated with genetically modified crops?

  1. Potential for unintended environmental consequences

  2. Increased reliance on pesticides and fertilizers

  3. Reduced nutritional value

  4. Increased crop yields
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Genetically modified crops are often developed to increase crop yields, making this a benefit rather than a challenge.

Multiple choice

What is the process of modifying an organism's DNA to change its traits called?

  1. Genetic Engineering

  2. Gene Therapy

  3. Recombinant DNA Technology

  4. Transgenesis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic engineering involves altering the genetic material of an organism to introduce new traits or modify existing ones.

Multiple choice

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

  1. Gene Cloning

  2. Gene Therapy

  3. Transgenesis

  4. Genetic Modification
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transgenesis involves the transfer of a gene from one organism to another, resulting in the recipient organism expressing the transferred gene.

Multiple choice

Which type of gene therapy involves replacing a defective gene with a functional copy?

  1. Gene Augmentation

  2. Gene Silencing

  3. Gene Editing

  4. Gene Replacement
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gene replacement therapy involves replacing a defective gene with a functional copy to restore normal gene function.

Multiple choice

What is the term for the process of introducing genetic material into cells using a viral vector?

  1. Transduction

  2. Transformation

  3. Transfection

  4. Gene Editing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transduction is the process of introducing genetic material into cells using a viral vector, allowing for the delivery of therapeutic genes.

Multiple choice

What is the term for the process of introducing genetic material into cells using a non-viral vector?

  1. Transduction

  2. Transformation

  3. Transfection

  4. Gene Editing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transfection is the process of introducing genetic material into cells using a non-viral vector, such as a plasmid or liposome.

Multiple choice

Which type of gene therapy involves introducing a new gene into cells to compensate for a defective gene?

  1. Gene Augmentation

  2. Gene Silencing

  3. Gene Editing

  4. Gene Replacement
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gene augmentation therapy involves introducing a new gene into cells to compensate for a defective gene, providing additional copies of the functional gene.

Multiple choice

What is the term for the process of inactivating a defective gene to prevent its expression?

  1. Gene Augmentation

  2. Gene Silencing

  3. Gene Editing

  4. Gene Replacement
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gene silencing involves inactivating a defective gene to prevent its expression, thereby reducing the production of harmful proteins.

Multiple choice

Which type of gene therapy involves modifying the expression of a gene without altering its sequence?

  1. Gene Augmentation

  2. Gene Silencing

  3. Gene Editing

  4. Gene Replacement
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gene editing involves modifying the expression of a gene without altering its sequence, allowing for precise changes to gene regulation.

Multiple choice

What is the term for the process of introducing genetic material into cells using a physical method, such as electroporation or microinjection?

  1. Transduction

  2. Transformation

  3. Transfection

  4. Gene Editing
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Transformation is the process of introducing genetic material into cells using a physical method, such as electroporation or microinjection, bypassing the need for a vector.

Multiple choice

What is the primary source of genetic diversity in crops?

  1. Wild relatives of crops

  2. Modern breeding practices

  3. Genetically modified organisms

  4. Natural selection
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wild relatives of crops harbor a vast array of genetic traits that can be incorporated into modern varieties through breeding programs.

Multiple choice

What is the term used to describe the process of introducing new genetic material into a population?

  1. Genetic engineering

  2. Gene editing

  3. Introgression

  4. Hybridization
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Introgression refers to the process of introducing new genetic material into a population through natural or artificial means, such as hybridization or selective breeding.

Multiple choice

Which of the following is an example of a genetically modified crop?

  1. Organic corn

  2. Heirloom tomatoes

  3. Bt cotton

  4. Non-GMO soybeans
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bt cotton is a genetically modified crop that has been engineered to produce a protein that is toxic to certain insect pests, such as the bollworm.

Multiple choice

What is the term used to describe the process of selecting and breeding plants or animals with desired traits?

  1. Genetic engineering

  2. Selective breeding

  3. Gene editing

  4. Hybridization
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Selective breeding involves selecting and breeding plants or animals with desired traits, such as higher yields, resistance to pests and diseases, or improved nutritional value.