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
  1. bacteria reproduce rapidly

  2. replication of the transgenic organism

  3. selection of the desired characteristic

  4. insertion of the gene into another organism

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The very first step in genetic engineering is identifying and selecting the specific characteristic or gene of interest that you want to transfer to another organism.

Multiple choice
  1. E. coli

  2. Micropipette

  3. Gel eletrophoresis

  4. Plasmid

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plasmids are small, circular, double-stranded DNA molecules found in bacteria that replicate independently of the bacterial chromosome. They are widely used as vectors to carry foreign genetic material into another cell.

Multiple choice
  1. Altered

  2. Kept the same

  3. Duplicated

  4. Mutated

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic engineering is defined by the deliberate alteration of an organism's DNA. By inserting, deleting, or modifying specific genes, scientists change the genetic code to produce desired traits.

Multiple choice
  1. Artificially altering the DNA of an organism?

  2. Artificially altering the DNA of a shoe

  3. Nothing

  4. Killing babies

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic engineering is the artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism. This process allows scientists to introduce new traits that do not naturally occur in the species.

Multiple choice
  1. changing an organisms genetic sequence

  2. transcribing an organisms genetic sequence

  3. copying an organisms genetic sequence

  4. growing an organisms genetic sequence

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Genetic engineering involves the deliberate modification of an organism's genetic material to alter its characteristics. This is achieved by changing or manipulating its genetic sequence, rather than simply copying, transcribing, or growing it.

Multiple choice
  1. animals mate produce a "super" organism

  2. Desirable gene of a plant is inserted into DNA of another

  3. Undesirable genes are transferred to a new plant to grow.

  4. Scientists allow plants to reproduce naturally.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Genetic manipulation (or genetic engineering) involves taking a desirable gene from one organism and inserting it into the genome of another to express that specific trait. Natural reproduction or transferring undesirable genes do not represent the goal of genetic engineering.

Multiple choice
  1. Study gene

  2. Study of heridatiory material

  3. Study of chromosome

  4. All

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Genomics is a broad field of biology focusing on the structure, function, evolution, mapping, and editing of genomes. This encompasses the study of individual genes, hereditary material (DNA), and chromosomes.

Multiple choice
  1. Tobbaco

  2. Bt

  3. Tomato

  4. Maize

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The first successful transgenic plant was produced in 1983 using an antibiotic-resistant tobacco plant (Nicotiana tabacum) via Agrobacterium-mediated transformation.

Multiple choice
  1. To produced GMO plant

  2. To produced antibiotics

  3. It is interdisiplinary

  4. All of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant biotechnology is a highly interdisciplinary field that involves the genetic modification of plants to produce GMOs, as well as the production of valuable compounds like biopharmaceuticals and antibiotics in plant systems.

Multiple choice
  1. using gene therapy

  2. they use

  3. use gene therapy

  4. gene therapy uses

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main verb of the sentence is "represent". Therefore, the blank needs a modifier for the subject "Experiments", which is provided by the participle phrase "using gene therapy". Options B, C, and D introduce finite verbs that would create grammatical errors or run-on structures.

Multiple choice
  1. Improvements to the quality and quantity of food.

  2. They can grow in adverse conditions, e.g. drought regions

  3. Herbicide & insect resistant & will therefore grow well.

  4. The long-term effects on our health are unknown.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

While GM foods offer benefits like increased yield or pest resistance, a primary concern for critics is the lack of long-term data regarding potential health impacts on humans.