18703.Agarose extracted from sea weeds finds use in
Gel electrophoresis
Spectrophotometry
Tissue culture
PCR
18704.In nucleoside, nitrogen base is attached to pentose sugar at
Carbon – 1 of pentose sugar
Carbon – 2 of pentose sugar
Carbon – 4 of pentose sugar
Carbon – 5 of pentose sugar
18705.Continuous addition of sugars in fed batch fermentation is done to
Degrade sewage
Produce methane
Obtain antibiotics
Purify enzymes
18708.Dolly, The first cloned mammal, was produced by
Parthenogenesis
Artificial fertilization
Replacement of zygote nucleus by somatic nucleus
in vitro fertilization
18709.The figure below is the diagrammatic representation of the E.coli vector pBR 322. Which one of the given options correctly identifies its certain component(s)?
Hind III, EcoRI-selectable markers
ampR, tetR-antibiotic resistance genes
ori-original restriction enzyme
rop-reduced osmotic pressure
18710.Embryo culture is used for
Establishing suspension culture
Recovery of inter specific hybrids
Somatic hybridization
Haploid production
18711.Genetic Engineering is
plastic surgery
addition or removal of genes
study of extranuclear genes
all of the above
18712.DNA fingerprinting was discovered by
James Watson
Alec Jeffreys
Frederick Fanger
Hargobind Khorana
18714.Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it?5 ______ GAATTC ________ 3 3 ________CTTAAG ________ 5
Palindromic sequence of base pairs
Replication completed
Deletion mutation
Start codon at the 5 end
18716.In recombinant DNA technology a plasmid vector is cleaved by
Modified DNA ligase
A heated alkaline solution
The same enzyme that cleave the donor DNA
The different enzyme other than that cleave the donor DNA
18718.The first clinical gene therapy was given for treating?
Rheumatoid arthritis
Chicken pox
Diabetes mellitus
Adenosine deaminase deficiency
18719.One of the following processes involves southern blotting technique
rDNA technology
DNA finger printing
production of transgenic plants
formation of suspension culture
18720.Plant tissue culture technique is a redefined method of ________
Hybridization
Vegetative propagation
Asexual reproduction
selection
18721.Restriction endonucleases are used in genetic engineering and they
cut DNA at various sites
join DNA segments
cut RNA at specific sites
cut DNA at specific sites
18722.Advancement in genetic engineering has been possible due to the discovery of
Oncogenes
Transposons
Restriction endonuclease
Exonucleases
18723.Functional unit of gene that specifies synthesis of one polypeptide is
Codon
Cistron
Recon
Muton
18724.Restriction endonucleases are used in genetic engineering, because
they can degrade harmful proteins
they can join DNA fragments
they can cut DNA at specific base sequences
they can cut DNA at variable sites
18725.Somatic hybridization is achieved through
Grafting
Protoplast fusion
Conjugation
Recombinant DNA technology
18727.The first hormone artificially produced by bacteria is
insulin
thyroxin
adrenalin
testosterone
18729.The most common substrate used in distilleries for the production of ethanol is
Molasses
Corn meal
Soya meal
Ground gram
18731.The plant Brassica napus has been modified to produce ______.
Vitamin A
hirudin
lysine rich seeds
insulin
18732.The specific triplet of nitrogen bases on the transfer RNA is called
Codon
Anticodon
Genetic code
none of the above
18734.The transgenic animals are those which have
foreign DNA in some of their cells
foreign DNA in all of their cells
foreign RNA in all of their cells
Both (A) and (C)
18736.There is a restriction endonuclease called EcoRI. What does "co" part in it stand for?
coli
colon
coelom
coenzyme
18737.Cry genes or Bt genes are obtained from
Cotton pest
Tobacco plant
Bacillus thuringiensis
E. coli
18740.Which of the following enzyme joints the okazaki fragments?
DNA polymerase
DNA ligase
Helicase
Restriction endonuclease
18741.Which of the following features should be present in vector?
It should replicate autonomously
It should have its own origin of replication
It should possess restriction enzyme cleavage sites
All of these
18743.Which of the following is related to genetic engineering?
Mitochondrion
Golgi apparatus
Lysosome
Plasmid
18744.Which of the following is used in Biowar?
A pathogen
Toxin from a pathogen
A delivery system for the bioweapon agent
All of these
18745.Meristem culture is practiced in horticulture to get
Slow-growing callus
Somaclonal variation
Haploids
Virus-free plants
18747.Which one is a true statement regarding DNA polymerase used in PCR?
It is isolated from a virus
It remains active at high temperature
It is used to ligate introduced DNA in recipient cells
It serves as a selectable marker
18748.Plasmid has been used as vector because :
Both ends show replication
It can move between prokaryotic and eukaryotic cells
It is circular DNA which have capacity to join to eukaryotic DNA
It has antibiotic resistance gene
18749.Which part would be most suitable for raising virus-free plants for micropropagation?
Meristem
Node
Bark
Vascular tissue
18750.For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of
Silicon or Platinum
Gold or Tungsten
Silver or Platinum
Platinum or Zinc
18751.The enzymes required to obtain wall-free / naked protoplasts are
Cellulase and proteinase
Cellulase and pectinase
Cellulase and amylase
Amylase and pectinase