Biology

Genetic Engineering and Biotechnology

2,033 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

Which one of the following is not correctly matched?

  1. Agglutination : Cross linkage of antigens by antibodies

  2. Hybridoma : Revealing intra-specific variation and diversity between species

  3. Plant tissue culture technique : Selection of somaclones that are resistant to herbicides

  4. RNA interference : Biological process in which RNA molecules inhibit gene expression

  5. Photolithography : Transferring geometric shapes on a mask to the surface of a silicon wafer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because Hybridoma technology is a technology of forming hybrid cell lines by fusing an antibody-producing B cell with a myeloma (B cell cancer) cell that is selected for its ability to grow in tissue culture and for an absence of antibody chain synthesis and revealing intra-specific variation and diversity between species is a Random Amplified Polymorphic DNA (RAPD).

Multiple choice

Restriction endonucleases are also known as

  1. molecular glue

  2. molecular scissors

  3. molecular markers

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

Restriction endonucleases are also known as molecular scissors as they function in cutting the DNA strand.

Multiple choice

What is the full form of GMO?

  1. Genetically manipulated organism

  2. Genetically modified organism

  3. Genetically maneuvered organism

  4. Generating mutated organism
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

GMO stands for genetically modified organism. 

Multiple choice

What is the expanded form of KEGG, a molecular database?

  1. Kyoto Expression of Genes and Genomes

  2. Kyoto Encyclopedia of Genes and Genomes

  3. Kyoto Expression of Genotypes and Genomes

  4. Kyoto Encyclopedia of Genes and Genotypes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

KEGG stands for Kyoto Encyclopedia of Genes and Genomes. It is a comprehensive database of biological pathways, diseases, drugs, and chemical substances. The name explicitly references 'Encyclopedia' not 'Expression' or 'Genotypes'.

Multiple choice

What is 'Leads' in gene therapeutics?

  1. A chemical

  2. A structure guided drug

  3. A prospective drug

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

In drug discovery, 'leads' are prospective drug compounds that show promising activity and have potential for further development. They can be chemicals, structure-guided compounds, or various other molecular entities.

Multiple choice

BioEdit is used for

  1. similarity studies

  2. structure prediction

  3. profile search

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

BioEdit is a biological sequence alignment editor designed to facilitate nucleic acid and protein sequence alignment analysis, editing, and similarity studies. It is not primarily a structure prediction or motif search tool.