MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
NEET
NEET Biology MCQ
Neet Biology Biotechnology Mcq
Quiz 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Q.1
A plant expressing a gene from another organism is ...[ HPPMT 2007]
0%
a) Transgenic
0%
b) Clone
0%
c) Somaclonal variant
0%
d) Transformed
Explanation
Answer : (a)
Q.2
Bacterial plasmid contains ...[ BHU 1997]
0%
a) RNA
0%
b) RNA + protein
0%
c) DNA
0%
d) Photosynthetic structures
Explanation
Answer : (c)
Q.3
Identify the vector suitable for cloning long DNA fragments ...[ EAMCET 2002]
0%
a) Phage vector
0%
b) Bacterial plasmid
0%
c) Yeast plasmid
0%
d) Cosmids
Explanation
A cosmid is a type of hybrid plasmid that contains a Lambda phage cos sequence . Cosmids (cos sites + plasmid = cosmids) DNA sequences are originally from the lambda phage. They are often used as a cloning vector in genetic engineering. Cosmids can be used to build genomic libraries. Answer : (d)
Q.4
In genetic engineering antibiotics are used ...[ CBSE 2012]
0%
a) For keeping cultures free of infection
0%
b) To select healthy vectors
0%
c) As selectable markers
0%
d) As sequences where replication starts
Explanation
Selectable markers It is a technique in gene targeting and gene knockout. Selectable markers are often antibiotic resistance genes; bacteria that have been subjected to a procedure to introduce foreign DNA are grown on a medium containing an antibiotic. The antibiotic knocks out cells which do not have the resistant marker. Answer : (c)
Q.5
In recombinant DNA technology, the term vector refers to ... [ Odisha 2010]
0%
a) Plasmid that can transfer foreign DNA into a living cell
0%
b) Cosmids that can cut DNA at specific base sequence
0%
c) Plasmids that an join different DNA fragments
0%
d) Cosmids that can degrade harmful proteins
Explanation
Vectors used at present, are engineered in such a way that they help easy linking of foreign DNA and selection of recombinants from non-recombinants. plasmids and bacteriophages have the ability to replicate within bacterial cells independent of the control of chromosomal DNA. Answer : (a)
Q.6
Assertion: Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with roots of all cereals and pulse crops Reason: A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the crop with which the bacterium associated
0%
a) Both are true with reason being correct explanation
0%
b) Both are true but reason is incorrect explanation
0%
c) Assertion is true but reason is wrong
0%
d) Both are wrong
Explanation
Agrobacterium tumifaciens, a pathogen of several dicot plants is able to deliver a piece of DNA known as ‘T-DNA’ to transform normal plant cells into a tumor and direct these tumor cells to produce the chemicals required by the pathogen. The tumor inducing (Ti) plasmid of Agrobacterium tumifaciens has now been modified into a cloning vector which is no more pathogenic to the plants but is still able to use the mechanisms to deliver genes of our interest into a variety of plants. Answer : (d)
Q.7
Which enzyme is useful in genetic engineering?
0%
a) Amylase
0%
b) DNa-ase
0%
c) Restriction endonuclease
0%
d) Lipase
Explanation
Answer : (c)
Q.8
Biopiracy is .. .. [ MHCET 2010]
0%
a) Exploitation of bioresources
0%
b) Patenting bioresources of others
0%
c) Use of bioresources without authorisation
0%
d) Both b and c
Explanation
Biopiracy is the practice of commercially exploiting naturally occurring biochemical or genetic material, especially by obtaining patents that restrict its future use, while failing to pay fair compensation to the community from which it originates. Answer : (b)
Q.9
Which is employed for synthesis of monoclonal antibody by hybridoma technique ...
0%
a) RBC
0%
b) Liver cells
0%
c) Tumour cells
0%
d) Nerve cells
Explanation
Answer : (c)
Q.10
Genetically engineered microorganism used successfully in bioremediation of oil spills is ... [ MPPMT 2009]
0%
a) Trichoderma
0%
b) Xanthomonas
0%
c) Bacillus
0%
d) Pseudomonas
Explanation
Answer : (d)
Q.11
Abnormal gene is replaced by normal gene. It is called ...[ DPMT 2002]
0%
a) Cloning
0%
b) Gene therapy
0%
c) Mutation
0%
d) None of the above
Explanation
Answer : (b)
Q.12
Transgenic animals are those which have ...[ CET Chd 2011]
0%
a) Foreign DNA in all its cells
0%
b) Foreign DNA in some of its cells
0%
c) DNA and RNA both in the cells
0%
d) Foreign RNA in all its cells
Explanation
Answer : (a)
Q.13
T1 plasmid is used for making transgenic plants. It is obtained from ...[ CBSE 2004]
0%
a) Azotobacter
0%
b) Agrobacterium
0%
c) Rhizobium in leguminous root
0%
d) Yeast
Explanation
Answer : (b)
Q.14
Restriction enzyme(s) of recombinant DNA technology that make staggered cuts leaving sticky ends is/are ... [ AMU 2012]
0%
a) EcoRI
0%
b) Hind III
0%
c) Bam HI
0%
d) All the above
Explanation
Answer : (d)
Q.15
Stirred-tank bioreactors have been designed for ... [ CBSE 2010]
0%
a) Purification of the product
0%
b) Ensuring anaerobic conditions in culture vessel
0%
c) Addition of preservatives to the product
0%
d) Availability of oxygen throughout the process
Explanation
Answer : (d)
Q.16
Fragments of DNA formed after treatment with endonucleases are separated by technique ..[ EAMCET 2005]
0%
a) Colony hybridization
0%
b) Electrophoresis
0%
c) Southern blotting
0%
d) Polymerase chain reaction
Explanation
Answer : (b)
Q.17
It is now possible to breed plants and animals of desired characters through ... [ AIIMS 1996]
0%
a) Tissue culture
0%
b) Genetic engineering
0%
c) Ikebana technique
0%
d) Chromosome engineering
Explanation
Answer : (b)
Q.18
The problem of blindness in poor countries can be overcome by using ... [ CBSE 2012]
0%
a) Golden Rice
0%
b) Transgenic Maize
0%
c) Transgenic Tomato
0%
d) Bt Brinjal
Explanation
Answer : (a)
Q.19
Product of biotechnology is ... [ MPPMT 2009]
0%
a) Transgenic crop
0%
b) Biofertilizer
0%
c) Humulin
0%
d) All the above
Explanation
Answer : (d)
Q.20
Human proteins can be produced in milk or semen of farm animals ..[ JKCET 2012]
0%
a) True
0%
b) False, proteins cannot be produced in semen
0%
c) False, proteins cannot be produced in milk
0%
d) False, animals are not used for protein production
Explanation
Answer : (a)
Q.21
Introduction of genetically modified food is not desirable because ... [ CBSE 2002]
0%
a) It will affect economy of developing countries
0%
b) The products are less tasty
0%
c) They are costly
0%
d) There is danger of entry of toxins and virus in food
Explanation
Answer : (d)
Q.22
Most abundant prokaryotes helpful to humans in making curd and antibiotics are ...[ CBSE 2012]
0%
a) Archaebacteria
0%
b) Cyanobacteria
0%
c) Heterotrophic bacteria
0%
d) Chemoautotrophs
Explanation
Answer : (c)
Q.23
Salt tolerant gene from Bacillus thuringiensis is introduced using T1 plasmid of ... [ AMU 2010]
0%
a) Escherichia cli
0%
b) Agrobacterium tumefaciens
0%
c) Haemophilus influenzae
0%
d) Arabidopsis thaliana
Explanation
Answer : (b)
Q.24
Amplification of gene of interest by using PCR may go upto ... [ AMU 2012]
0%
a) 0.1 million
0%
b) 1.0 million
0%
c) 1.0 billion
0%
d) 1.0 trillion
Explanation
Answer : (c)
Q.25
Crystals of Bt toxin produced by some bacteria do not kill the bacteria because ...[ HPPMT 2010]
0%
a) Bacteria are resistant to the toxin
0%
b) Toxin is inactive
0%
c) Toxin is immature
0%
d) Bacteria enclose toxin in a special sac
Explanation
Answer : (b)
Q.26
Vitamin A rich gene is ...[ ODisha 2006]
0%
a) Flavr Savr Tomato
0%
b) Golden rice
0%
c) Bt cotton
0%
d) Vaccinated Potato
Explanation
Answer : (b)
Q.27
Restriction endonucleases are ...[ CBSE 2004]
0%
a) Used for vitro DNA
0%
b) Present in mammalian cells for degeneration of DNA of dead cells
0%
c) Used in genetic engineering for uniting two DNA molecules
0%
d) Synthesised by bacteria for their defense
Explanation
Restriction enzyme, also called restriction endonuclease, a protein produced by bacteria that cleaves DNA at specific sites along the molecule. These enzymes are found in bacteria and archaea and provide a defence mechanism against invading viruses. Answer : (d)
Q.28
Which is wrongly matched ...[ CBSE 2012]
0%
a) Somatic hybridization - Fusion of two diverse cells
0%
b) Vector DNA - Site for tRNA synthesis
0%
c) Micropropagation - In Vitro production of plants in large number
0%
d) Callus-Unorganized mass of cells produced in tissue culture
Explanation
Answer : (b)
Q.29
Transgenic plants are ones ... [ CBSE 2009]
0%
a) Grown on artificial medium after hybridization in the field
0%
b) Produced after protoplast fusion in artificial medium
0%
c) Produced by somatic embryo on artificial medium
0%
d) Generated by introducing foreign DNA into cell and regenerating plant from that cell
Explanation
Answer : (d)
Q.30
Which is used to select genes from genomic library ... [ JKCET 2012]
0%
a) Cloning vector
0%
b) DNA probes
0%
c) Restriction enzyme
0%
d) Gene targets
Explanation
Answer : (b)
Q.31
Which is related to genetic engineering? [ AIIMS 2001]
0%
a) Plastid
0%
b) Plasmid
0%
c) Heterosis
0%
d) Mutation
Explanation
Answer : (b)
Q.32
Gene amplification using primers can be done by ...[ kerala 2011]
0%
a) Microinjection
0%
b) ELISA
0%
c) Polymerase chain reaction
0%
d) Electrophoresis
Explanation
Answer : (c)
Q.33
Which is used in gene cloning ... [ CBSE 2010]
0%
a) Lomasomes
0%
b) Mesosomes
0%
c) Plasmids
0%
d) Nucleotides
Explanation
Answer : (c)
Q.34
Autonomously replicating circular extra chromosomal DNA is called ..[ HPPMT 2010]
0%
a) Chromatin
0%
b) Plasmid
0%
c) Palindromic nucleotide sequence
0%
d) Nucleoid
Explanation
Answer : (b)
Q.35
First step in Southern blot technique is ... [ AIIMS 2008]
0%
a) Digestion of DNA by restriction enzyme
0%
b) Production of group of genetically identical cells
0%
c) Denaturation of DNA on the gel for hybridization with specific probe
0%
d) Denaturation of DNA from a nucleated cell as from the scene of crime
Explanation
Answer : (a)
Q.36
Satellite DNA is useful tool in ... [ CBSE 2010]
0%
a) Forensic science
0%
b) Organ transplantation
0%
c) Genetic engineering
0%
d) Sex determination
Explanation
Answer : (a)
Q.37
Genetically engineered bacteria are being used in commercial production of .. [ CBSE 1996]
0%
a) Melatonin
0%
b) Testosterone
0%
c) Human insulin
0%
d) Thyroxine
Explanation
Answer : (c)
Q.38
Golden colour of Rice is due to occurrence of ... [ MHTCET 2011]
0%
a) Vitamin A
0%
b) Vitamin C
0%
c) Vitamin B6
0%
d) Vitamin K
Explanation
Answer : (a)
Q.39
A correct pair of characteristics of molecular probe are ... [ EAMCET 2009] A. Very long molecule B. Double stranded C. DNA or RNA D. Complementary to a part of desired gene
0%
a) A, B
0%
b) B, C
0%
c) C, D
0%
d) D, A
Explanation
Answer : (c)
Q.40
Recombinant DNA bearing ampicillin resistance gene is passed in E.coli. The latter are spread on agar plates containing ampicillin. Then ... [ AMU 2011]
0%
a) Transformed recipient cells grow and untransformed cell die
0%
b) Both transformed and untransformed cells die
0%
c) Transformed recipient cell grow and untransformed cells die
0%
d) Transformed recipient cells die and untransformed cells grow
Explanation
Answer : (c)
Q.41
Genetic engineering is ... [BHU 2003]
0%
a) Making artificial genes
0%
b) Hybridization of DNA
0%
c) Making artificial limbs and diagnostic instruments
0%
d) Production of alcohol by using microorganisms
Explanation
Answer : (b)
Q.42
Which one is not used for early molecular diagnosis ... [HPPMT 2011]
0%
a) Polymerase chain reaction
0%
b) Polyacrylamide gel electrophoresis
0%
c) Recombinant DNA technology
0%
d) Enzyme linked immunosorbent assay
Explanation
Answer : (b)
Q.43
Transgenic plants are plants having ... [ Odisha 2002]
0%
a) No gene
0%
b) Genes in transposition
0%
c) Genes have no function to perform
0%
d) Genes of an other organism
Explanation
Answer : (d)
Q.44
Globular protein of 6kDa consisting of 51 amino acids arranged in two polypeptide chains held by disulphide bridge is ... [ AMU 2012]
0%
a) Keratininsulin
0%
b) keratin
0%
c) glucagon
0%
d)fibrinogen
Explanation
Human insulin is a peptide hormone composed of 51 ammo acids and has a molecular weight of 5805 Da.(∼ 6 Kda). In this molecule, there are two polypeptide chains (A and B) held together by disulphide bridge. Answer : (a)
Q.45
A good vector in genetic engineering is ...[ JIPMER 2000]
0%
a) Agrobacterium tumefaciens
0%
b) Bacillus thuringiensis
0%
c) Bacillus amyloliquefaciens
0%
d) Salmonella typhimurium
Explanation
Answer : (a)
Q.46
Assertion: A gene from Bacillus thuringiensis is incorporated in plant genome to increase yield Reason: It is Bt toxin producing gene which kills larvae of insects
0%
a) Both are true with reason being correct explanation
0%
b) Both are true but reason is not correct explanation
0%
c) Assertion is true but reason is wrong
0%
d) Both are wrong
Explanation
Answer : (a)
Q.47
Polymerase chain reaction is useful in ...[ BHU 2008]
0%
a) DNA synthesis
0%
b) DNA amplification
0%
c) Protein synthesis
0%
d) Amino acid synthesis
Explanation
Answer : (b)
Q.48
GMO technology is useful for ...[ HPPMT 2011]
0%
a) Enhancing nutritional value of food
0%
b) Helping to reduce post-harvest losses
0%
c) Making crop more tolerant to abiotic stresses
0%
d) All the above
Explanation
Answer : (d)
Q.49
Bt cotton genes repel ...[ CET Chd. 2010]
0%
a) Bacterial pathogens
0%
b) Fungal pathogens
0%
c) Nematode parasites
0%
d) Insect pest
Explanation
Answer : (d)
Q.50
Genomic DNA library is ... [ JKCMEE 2007]
0%
a) Packing of donor donor DNA in a collection of vectors
0%
b) A collection of gene vector
0%
c) Collection of organisms for extracting DNA
0%
d) A collection of literature about DNA
Explanation
Answer : (a)
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page