Tag: botany

Questions Related to botany

Which of the following is not an antibiotic?

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Griseofulvin

  2. Cephalosporin

  3. Citric acid

  4. Streptomycin

  5. Both (A) and (C)

Show answer
Correct Option: E
Explanation:

Citric acid is a weak organic acid with the formula -CHO. It is a natural preservative or conservative which occurs naturally in citrus fruits and is also used to add an acidic or sour taste to foods and drinks. Griseofulvin is an orally administered antifungal drug. It is used both in animals and humans, to treat fungal infections of the skin and nails. Whereas cephalosporins are a group of broad spectrum, semi-synthetic beta-lactam antibiotics derived from the mould Cephalosporium. Streptomycin is an antibiotic (antimycobacterial) drug, the first of a class of drugs called as aminoglycosides to be discovered,

Recombinant DNA technology is also called

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Biotechnology

  2. Modern biotechnology

  3. Genetic engineering

  4. Transgenic technology

Show answer
Correct Option: C
Explanation:

The correct option is C

The rDNA technology is the formation of DNA molecules formed by the laboratory method of genetic recombination to bring together genetic material from multiple sources, creating a sequence that would not otherwise be found in the genome.

Genetic engineering is connected with

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Development of transgenic plants

  2. Development of vaccination

  3. Gene therapy

  4. All the above

Show answer
Correct Option: D

Modern biotechnology is based on

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Protoplast fusion

  2. Tissue culture

  3. Recombinant proteins

  4. Genetic engineering

Show answer
Correct Option: D
Explanation:

Modern biotechnology is based on the the methods of genetic engineering.  It is a technique which involves the introduction of foreign DNA carrying the desired gene of interest into the host organism & thus change the phenotype of the host organism.

So, the correct option is 'Genetic engineering'.

Introduction of foreign gene for improving genotype is

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Tissue culture

  2. Genetic engineering

  3. Biotechnology

  4. Vernalisation

Show answer
Correct Option: B

A technique of deliberate manipulation of genes/transfer of gene to a different organism is 

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Tissue culture

  2. Hybridoma technology

  3. Genetic engineering

  4. Gene therapy

Show answer
Correct Option: C

Removal and insertion of genes is

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Genetic engineering

  2. Biotechnology

  3. Gene therapy

  4. Cytogenetics

Show answer
Correct Option: A

Genetic engineering is

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Making artificial genes

  2. Hybridisation of DNA

  3. Making artificial limbs and diagnostic instruments

  4. Production of alcohol by using microorganisms

Show answer
Correct Option: B

Genetic engineering is

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Study of extra nuclear gene

  2. Manipulation of genes by artificial method

  3. Manipulation of RNA

  4. Manipulation of enzymes

Show answer
Correct Option: B
Explanation:

Genetic engineering aims to add new DNA to an organism to add one or more new favorable traits that are not found in that organism. Genes are the DNA segments that carry the genetic information for the production of particular proteins/ enzymes. These enzymes/proteins determine the traits of an organism, thus alteration in gene structure is the key to impart new traits to the organisms. The genetic information present in genes is copied to the RNA and finally into the proteins; further genes are inherited from generation to generation. Hence, manipulation of RNA, protein or extranuclear gene will be confined to that generation only. Hence, genetic engineering is the manipulation of genes.

Nuclear transplantation technique was discovered by

botany biotechnology: general introduction microbiology: organisms in industry biotechnology commercial applications of biotechnology

  1. Briggs

  2. Wilmut

  3. Gurdon

  4. Griffith

Show answer
Correct Option: A
Explanation:

Briggs and King discovered that normal hatched tadpoles can be obtained by transplanting the nucleus of a blastula cell to the enucleated eggs of Rana pipiens. This finding provided an initial answer to the long-standing question of whether the process of development and cell differentiation requires a loss or stable change in the genetic constitution of cells.