21. Biodiversity and Wildlife

Q- Which of the following vitamin is transformed in golden rice?
(a) Vitamin A (b) Vitamin B12
(c) Vitamin C (d) Vitamin D
Ans: (a)

Q- Match List-I with List-II and select the correct answer using the codes given below the lists: List-I List-II
A. Structure of DNA
1. Jacob & Mond
B. ABO Blood Group
2. Barbara Machclintock
C. Jumping gene 3. Watson & Crick
D. Regulatory gene
4. Landstiner Codes A B C D
(a) 4 3 2 1
(b) 3 4 1 2
(c) 3 4 2 1
(d) 4 3 2 1
Ans: (c)

Q- Which of the following is reffered as molecular glue?
(a) DNA ligase
(b) DNA polymerase
(c) Restriction enzyme
(d) Topoisomerase
Ans: (a)

Q- Human protein X-1-antitrysin is used for which of the following disease?
(a) Cholera (b) Small pox
(c) Emphysama (d) Gout
Ans: (c)

Q- Antibiotic belong to the category of
(a) Steroids (b) Toxin
(c) Medicine (d) Tonics
Ans: (c)

Q- Which one of the following types of cell has the ability to develop into any type of all?
(a) Endodermal cell
(b) Ectodermal cell
(c) Stem cell
(d) Muscles cell
Ans: (c)

Q- The enzymes that are used as molecular scissors to cut DNA at specific sites for various purposes in genetic engineering
(a) DNA ligases
(b) DNA polymerases
(c) Restriction endonucleases
(d) Restriction exonucleases
Ans: (c)

Q- Modified antibiotics are got through
(a) Vernalisation
(b) Ultrafiltration
(c) Ultracentrifuge
(d) Genetic engineering
Ans: (d)

Q- Plasmid are
(a) Cytoplasmic organelles which store starch
(b) Extrachromosomal DNA elements in bacteria
(c) Genes which cause cancer
(d) Basic proteins around which DNA is coiled in encaryotic chromosome
Ans: (b)

Q- A DNA library constitutes
(a) All the genes in a gene pool
(b) All the genes sequenced so far
(c) A collection of all the DNA fragments of an organism inserted in plasmid
(d) A DNA fragment inserted in a phase
Ans: (c)

Q- A method used to distinguish DNA of one invidual from another is
(a) DNA sequencing
(b) eDNA
(c) Hybridisation
(d) Restriction fragment length polymorphism
Ans: (d)

Q- Genetic engineering means
(a) Meotic division of cells
(b) Nucleotide transfer
(c) Delation and repair mechanism
(d) None of the above
Ans: (c)

Q- Biotechnology is
(a) Technology used in biology
(b) Use of genetic engineering
(c) Development of technology for medicine application
(d) Use of microorganisms in industrial process
Ans: (d)

Q- Which is used extensively for genetic engineering in plant?
(a) Agrobacterium tumefaciens
(b) Xanthomonas citri
(c) Bacillus coagulens
(d) Clostridium specticum
Ans: (a)

Q- Nuclease enzyme which begin its attack from free end of polynucleotide is
(a) Endonuclease
(b) Exonuclease
(c) Polymerase
(d) Kinase
Ans: (b)

Q- Important objective of biotechnology in agriculture section is
(a) % produce best resistant varieties of plant
(b) % increase the nitrogen content
(c) % decrease the seed number
(d) % increase the plant weight
Ans: (a)

Q- Which of the following is not use as vector in genetic engineering?
(a) Plasmids
(b) Bacteriophages
(c) Anopholes
(d) Transposons
Ans: (c)

Q- The first product of ancient biotechnology was
(a) Alcohol
(b) Lactic acid
(c) Insulin
(d) Steroid
Ans: (b)

Q- The first transgenic crop was
(a) Pea
(b) Flax
(c) Tobacco
(d) Cotton
Ans: (c)

Q- Restriction endoucleases were used by Cohen and Boyer’s DNA experiments for
(a) Isolation of cloned bacterial plasmids
(b) Cleaving the bacterial plasmid
(c) Isolation of human insulin
(d) Both (a) and (b)
Ans: (d)

Q- First hormone prepared by genetic engineering is
(a) Oxytocin
(b) Somato tropin
(c) Adrenalin
(d) Insulin
Ans: (d)

Q- Advancement in genetic engineering has been possible due to discovery of
(a) Oncogenes
(b) Transposons
(c) Restriction endonuclease
(d) Exonuclease
Ans: (c)

Q- The Northern blot technique is used for the detection of
(a) r RNa (b) m RNA
(c) t RNA (d) RNA
Ans: (d)

Q- The southern blot technique is used for the detection of
(a) DNA
(b) RNA
(c) Protein
(d) None of the above
Ans: (a)

Q- Which one of the following contains powerful oxidative enzymes and help in removing toxic substance from cells?
(a) Plastids
(b) Lysosomes
(c) Dictyosomes
(d) Peroxisomes
Ans: (d)

Q- Enzyme TPA or plasminogen activator is used for
(a) Dissolving blood clots
(b) Maintaining plasma content
(c) Clearing turbidity of juices
(d) Stimulating thromboplastin production
Ans: (a)

Q- Which of the following does not fall within the area of biotechnology?
(a) Extraction of copper from its ore
(b) Formation of yoghurt and cheese from milk
(c) Production of insulin using gene technology
(d) Production of antibiotics from moulds
Ans: (a)

Q- Introduction of foreign genes for improving genotype is
(a) Tissue culture
(b) Immunisation
(c) Biotechnology
(d) Genetic engineering
Ans: (b)

Q- Distribution of clean and quality milk throughout the world has been made possible through work of
(a) Leeuwenhoek
(b) Koch
(c) Pasteur
(d) Blackman
Ans: (c)

Q- A genetically engineered form of bringoral known as the Bt-bringal has been developed. The objective of this is
(a) To make it pest-resistant
(b) To improve its taste and nutritive qualities
(c) To make it drought resistant
(d) To make its shelf-life longer
Ans: (a)

Q- The genetically engineered ‘Golden Rice is rich’ in which of the following?
(a) Vitamin A and nicotinc acid
(b) b-Carotene, Vitamin A and folic acid
(c) b-Carotene and iron
(d) Vitamin A and niacin
Ans: (b)

Q- Restriction enzyme was discovered by
(a) Smit and Nathans
(b) Berger
(c) Waksman
(d) Fleming
Ans: (a)

Q- Genetically engineered human insulin is manufactured by the use of
(a) E. coli
(b) Rhizopus
(c) Pseudomonas
(d) Ashbya gosspii
Ans: (a)

Q- BE seed is associated with
(a) Rice (b) Wheat
(c) Cotton (d) Oilseed
Ans: (c)

Q- Which of the following risk are associated with genetically modified food?
1. Toxicity
2. Allergic reaction
3. Antibiotic resistance in microorganisms present in alimentary canal Codes
(a) 1 and 2 (b) 1, 2 and 3
(c) 1 and 3 (d) 2 and 3
Ans: (b)

Q- Antibiotics inhibit the growth of or destroying
(a) Bacteria
(b) Bacteria and viruses
(c) Bacteria, fungi and viruses
(d) Bacteria, algae and viruses
Ans: (c)

Q- The Coral reefs are the marine counterpart of
(a) Temperate forest
(b) Tropical rain forest
(c) Savannahs
(d) Scrubland
Ans: (d)

Leave a Reply

Your email address will not be published. Required fields are marked *