12-bio-botany-unit-IV Biotechnology

13 Questions | By Padasalai12bot | Last updated: Dec 2, 2013 | Total Attempts: 1054

Questions

Settings

Prepared by Mr. D. Rajamani, M. Sc. ,M. Ed. , P. G. Asst Botany A. C. S Mat. Hr Sec. School, Arni. Tiruvannamalai Dist ; &nbs p; & www. Padasalai. Net

Questions and Answers

1.

Restriction enzymes are synthesized by
- A.
  
  Bacteria only
- B.
  
  Yeast and bacteria only
- C.
  
  Eukaryotic cells only
- D.
  
  All kinds of cells
2.

Each restriction enzyme cleaves a molecule only at
- A.
  
  Nucleotide sequence
- B.
  
  the ends of genes
- C.
  
  Methyl groups
- D.
  
  The time of DNA replication
3.

One of the following process is employed to introduce a foreign gene into a cell
- A.
  
  Electroporation
- B.
  
  Electrolysis
- C.
  
  Plasmid
- D.
  
  Ligation
4.

A toxic protein called delta endotoxin is insecticidal and it is produced by
- A.
  
  Bacillus thuringiensis
- B.
  
  Escherichia coli
- C.
  
  Streptomyces griseus
- D.
  
  Bacillus lactii
5.

The number of transgenic plants available to-day are approximately
- A.
  
  Fifty
- B.
  
  Six
- C.
  
  Two
- D.
  
  Twelve
6.

Pseudomonas putida is a engineered bacterium that can
- A.
  
  Digest crude oil slick
- B.
  
  Produce a hormone
- C.
  
  Produce a antibiotic
- D.
  
  Pollute the soi
7.

The inherent potential of any living plant cell to develop into entire organism is clled
- A.
  
  Totipotency
- B.
  
  Differentiation
- C.
  
  Organogenesis
- D.
  
  Morphogenesis
8.

The function of cytokinin is to increase
- A.
  
  Cell division
- B.
  
  Cell elongation
- C.
  
  Fruit initiation
- D.
  
  Differentiation
9.

By the application of tissue culture, one important product is formed
- A.
  
  Artificial synthetic seeds
- B.
  
  Many seeded fruit
- C.
  
  Triploid endosperm
- D.
  
  Induction of flowers
10.

The two protoplasts are fused with a fusogen called
- A.
  
  Polyethylene glycol (PEG)
- B.
  
  Polyvinyl chloride (PVC)
- C.
  
  Polyethane glycol (PEG)
- D.
  
  Phosphoric ethane
11.

Somatic hybrids are produced through
- A.
  
  Protoplasmic fusion
- B.
  
  Asexual fusion
- C.
  
  Vegetative propagation
- D.
  
  Grafting
12.

One of the following organism is a SCP
- A.
  
  Spirulina
- B.
  
  Nostoc
- C.
  
  Rhizobium
- D.
  
  Mushroom
13.

Enriched vitamin tablets are produced from the following organism for human consumption
- A.
  
  Spirulina
- B.
  
  Nostoc
- C.
  
  Yeast
- D.
  
  Mushroom