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
Which type of immunotherapy involves the use of genetically modified bacteria to target and kill cancer cells?
-
Adoptive T-cell therapy
-
Checkpoint inhibitors
-
Bacterial therapy
-
Cancer vaccines
C
Correct answer
Explanation
Bacterial therapy involves the use of genetically modified bacteria to target and kill cancer cells. These bacteria are engineered to selectively infect and destroy cancer cells while leaving healthy cells unharmed.
What is the term for the process of transferring genetic material from one organism to another?
-
Gene Therapy
-
Genetic Engineering
-
Recombinant DNA Technology
-
Transgenesis
A
Correct answer
Explanation
Gene Therapy involves transferring genetic material into a patient's cells to treat genetic disorders or diseases by correcting faulty genes or introducing functional ones.
Which technology is used to develop climate-resilient crops?
-
Genetic Engineering
-
Hydroponics
-
Aquaponics
-
Permaculture
A
Correct answer
Explanation
Genetic engineering is used to develop climate-resilient crops that can withstand extreme weather conditions, pests, and diseases, ensuring food security in a changing climate.
Which technology involves the use of genetically modified crops designed to withstand climate-related stresses?
-
Genetically modified crops
-
Precision agriculture
-
Sustainable irrigation
-
Agroforestry
A
Correct answer
Explanation
Genetically modified crops are engineered to possess traits that make them more resistant to climate-related stresses, such as drought, heat, and pests.
What are some of the ethical challenges associated with the use of genetically modified organisms (GMOs) in agriculture?
-
The potential for GMOs to harm human health or the environment.
-
The potential for GMOs to lead to the loss of biodiversity.
-
The potential for GMOs to be used to create new forms of life that are not found in nature.
-
All of the above
D
Correct answer
Explanation
The use of GMOs in agriculture raises a number of ethical challenges, including the potential for GMOs to harm human health or the environment, the potential for GMOs to lead to the loss of biodiversity, and the potential for GMOs to be used to create new forms of life that are not found in nature.
What is genetic engineering?
-
The process of modifying the genetic material of an organism
-
The process of creating new organisms from scratch
-
The process of cloning organisms
-
The process of selecting organisms with desirable traits
A
Correct answer
Explanation
Genetic engineering is the process of modifying the genetic material of an organism.
What is the Human Genome Project?
-
A project to sequence the entire human genome
-
A project to identify all the genes in the human genome
-
A project to develop new drugs for diseases
-
A project to create new organisms from scratch
A
Correct answer
Explanation
The Human Genome Project was a project to sequence the entire human genome.
What are the future applications of DNA technology?
-
Personalized medicine
-
Gene therapy
-
Designer babies
-
All of the above
D
Correct answer
Explanation
DNA technology has a number of future applications, including personalized medicine, gene therapy, and designer babies.
Which of the following is NOT a type of gene therapy?
-
Gene augmentation
-
Gene silencing
-
Gene editing
-
Gene replacement
A
Correct answer
Explanation
Gene augmentation involves introducing a functional gene into a cell to compensate for a defective gene, while gene silencing, gene editing, and gene replacement all involve modifying or replacing a defective gene.
Which of the following is NOT a potential application of gene therapy?
-
Treating genetic disorders
-
Developing new vaccines
-
Curing cancer
-
Enhancing athletic performance
D
Correct answer
Explanation
Gene therapy is primarily used for treating genetic disorders, developing new vaccines, and curing cancer. Enhancing athletic performance is not a legitimate application of gene therapy.
Which type of gene therapy involves replacing a defective gene with a functional copy?
-
Gene augmentation
-
Gene silencing
-
Gene editing
-
Gene replacement
D
Correct answer
Explanation
Gene replacement therapy involves replacing a defective gene with a functional copy, either by directly inserting the functional gene into the genome or by using a viral vector to deliver the gene to the target cells.
Which type of gene therapy involves using a viral vector to deliver a functional gene to target cells?
-
Gene augmentation
-
Gene silencing
-
Gene editing
-
Viral vector-mediated gene transfer
D
Correct answer
Explanation
Viral vector-mediated gene transfer involves using a modified virus to deliver a functional gene to target cells. The virus is engineered to be non-replicative and to carry the therapeutic gene, which is then integrated into the host cell's genome.
What is the main advantage of using gene therapy over traditional drug therapy?
-
It can target the underlying genetic cause of a disease
-
It has fewer side effects
-
It is more effective in treating chronic diseases
-
It is less expensive to administer
A
Correct answer
Explanation
Gene therapy has the potential to target the underlying genetic cause of a disease, offering the possibility of a permanent cure. Traditional drug therapy often only treats the symptoms of a disease, not the underlying cause.
Which technology is used to develop climate-resilient crop varieties?
-
Genetic Engineering
-
Selective Breeding
-
Tissue Culture
-
All of the above
D
Correct answer
Explanation
Genetic engineering, selective breeding, and tissue culture are all technologies that can be used to develop climate-resilient crop varieties.
What is the name of the groundbreaking technology that utilizes gene editing techniques to modify an individual's DNA, potentially correcting genetic defects and treating inherited diseases?
-
Genetic Engineering
-
Nanomedicine
-
Bioprinting
-
CRISPR-Cas9
D
Correct answer
Explanation
CRISPR-Cas9 is a gene editing technology that allows for precise modifications to an individual's DNA, offering potential treatments for inherited diseases.