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Viral genome incroporatcd into host DNA is called:

General Science Biology Class 12th NEET UG NEET UG Preparation

Q. 14 of Quiz-1461 (Que-ID : 3407)

Viral genome incroporatcd into host DNA is called:

  • Prophase
  • Protophage
  • Bacteriophage
  • None of these

Ans → (c)Bacteriophage

Explanation → Viral genome incroporatcd into host DNA is called Bacteriophage

This question is taken from this post → Biotechnology: Principles and Processes - Biology (Class 12th) Revision Test | MCQs for NEET - attemp/practice


More MCQs in - Biotechnology: Principles and Processes - Biology (Class 12th) Revision Test | MCQs for NEET

Q. 1 of Quiz-1461 (Que-ID : 3394)

Biolistics (gene gun) is suitable for

  • introducing rDNA into plant cells
  • introducing rDNA into animal cells
  • disarming the pathogen vectors
  • DNA fingerprinting.

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Q. 2 of Quiz-1461 (Que-ID : 3395)

In genetic engineering experiments, restriction enzymes are used for

  • viral DNA
  • bacterial DNA
  • eukaryotic DNA
  • any type of DNA.

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Q. 3 of Quiz-1461 (Que-ID : 3396)

The DNA fragments produced by the use of restriction endonucleases can be separated by

  • polymerase chain reaction
  • gel electrophoresis
  • density gradient centrifugation
  • any of the above

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Q. 4 of Quiz-1461 (Que-ID : 3397)

Plasmids in bacterial cells are

  • extra-chromosomal DNA, which cannot replicate
  • extra-chromosomal DNA, which can . self-replicate
  • extra DNA associated with the genome
  • extra DNA, associated with the genome, but cannot replicate.

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Q. 5 of Quiz-1461 (Que-ID : 3398)

The DNA polymerase enzyme used in PCR is obtained from

  • Thermus aquaticus
  • Escherichia coli
  • Agrobacterium tumefaciens
  • Salmonella typhimurium

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Q. 6 of Quiz-1461 (Que-ID : 3399)

While isolating DNA from bacteria, which of the following enzymes is not used?

  • Lysozyme
  • Ribonuclease
  • Deoxyribonuclease
  • Protease

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Q. 7 of Quiz-1461 (Que-ID : 3400)

Significance of ‘heat shock’ method in bacterial transformation is to facilitate

  • binding of DNA to the cell wall
  • uptake of DNA through membrane transport proteins
  • uptake of DNA through transient pores in the bacterial cell wall
  • expression of antibiotic resistance gene

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Q. 8 of Quiz-1461 (Que-ID : 3401)

Which of the following steps are catalysed by Taq polymerase in a PCR reaction?

  • Denaturation of template DNA
  • Annealing of primers to template DNA
  • Extension of primer end on the template DNA
  • All of the above

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Q. 9 of Quiz-1461 (Que-ID : 3402)

Which of the given statement is correct in the context of observing DNA separated by agarose gel electrophoresis?

  • DNA can be seen in visible light
  • DNA can be seen without staining in visible light
  • Ethidium bromide stained DNA can be seen in visible light
  • Ethidium bromide stained DNA can be seen under exposure to UV light

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Q. 10 of Quiz-1461 (Que-ID : 3403)

Restriction’ in Restriction enzyme refers to

  • cleaving ofphosphodiester bond in DNA by the enzyme
  • cutting of DNA at specific position only
  • prevention of the multiplication of bacteriophage in bacteria
  • all of the above

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Q. 11 of Quiz-1461 (Que-ID : 3404)

The role of DNA ligase in the construction of a recombinant DNA molecule is

  • formation of phosphodiester bond between two DNA fragments
  • formation of hydrogen bonds between sticky ends of DNA fragments
  • ligation of all purine and pyrimidine bases
  • none of the above

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Q. 12 of Quiz-1461 (Que-ID : 3405)

In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be

  • both transformants and non-transformants cannot survive
  • both transformants and non-transformants can survive.
  • transformants only and not the non-transformants can survive
  • transformants cannot survive, but non-transformants can not.

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Q. 13 of Quiz-1461 (Que-ID : 3406)

DNA element with ability to change its position is called

  • Cistron
  • Transposon
  • Intron
  • Ricon

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Q. 14 of Quiz-1461 (Que-ID : 3407)

Viral genome incroporatcd into host DNA is called:

  • Prophase
  • Protophage
  • Bacteriophage
  • None of these

Discuss View Answer

Q. 15 of Quiz-1461 (Que-ID : 3408)

Triticale, first man made cereal crop, has been obtained by crossing wheat with:

  • Rye
  • Pearl millet
  • Sugarcane
  • Barley

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Q. 16 of Quiz-1461 (Que-ID : 3409)

Golden rice is a promising transgenic crop. When released for cultivation, it will help in :

  • High lysin content
  • Pest resistance
  • High protien content
  • High vitamin A content

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Q. 17 of Quiz-1461 (Que-ID : 3410)

Restrictipn endonucleases are most widely used in recombinant DNA technology. They are obtained from

  • Plasmids
  • AH prokaryotic cells
  • Bacteriophages
  • Bacterial cells

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Q. 18 of Quiz-1461 (Que-ID : 3411)

Restriction endonuclease cuts

  • One stand of DNA at specific site
  • Both strands of DNA
  • Both strands of DNA at any site
  • Single strand of RNA

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Q. 19 of Quiz-1461 (Que-ID : 3412)

Plasmid is a

  • Fungus
  • Plasmid
  • Part of Plasma membrane
  • Extra chromosomal DNA in bacterial cell

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Q. 20 of Quiz-1461 (Que-ID : 3413)

Two microbes found tb be very useful in Genetic Engineering are

  • Excherichia coli and Agrobacterium tumefaciens
  • Vibrio cholarae and a tailed bacteriophage
  • Diplococcus sp. and Pseudomonas sp.
  • Crown gall bacterium and Caenorhabdities elegans

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Q. 21 of Quiz-1461 (Que-ID : 3414)

DNA obtained for DNA finger printing:

  • W.B.C
  • Hair root cells
  • Body fluids
  • None of these

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Q. 22 of Quiz-1461 (Que-ID : 3415)

Who discovered Restricted endonucleas enzymes?

  • Smith and Nathane
  • Baiger
  • Waxman
  • Fleming

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Q. 23 of Quiz-1461 (Que-ID : 3416)

Two microbes found to be very useful in genetic, engineering are

  • Escherichiya Coli and Agrobacterium tumefaciens
  • Virbio chloerae and tailed bacteriophage
  • Diplococcus sp and pseudomonas sp
  • None of these

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Q. 24 of Quiz-1461 (Que-ID : 3417)

Transgenic plants are develop by

  • Introducing of foreign fenes
  • Clone and genetically modified genes
  • Genetic engineering
  • Purified genes

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Q. 25 of Quiz-1461 (Que-ID : 3418)

Transgenic plants are develop by

  • Introducing of foreign fenes
  • Clone and genetically modified genes
  • Genetic engineering
  • Purified genes

Discuss View Answer

More MCQs In - General Science Biology Class 12th NEET UG NEET UG Preparation

Q. 2 of Quiz- (Que-ID : 3445)

The size of the population tells us a lot about its status in the

  • Environment
  • Sex-ratio
  • Age pyramid
  • Habitat

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Q. 24 of Quiz- (Que-ID : 2742)

What cause red tides

  • Gonyalaux
  • Bacteria
  • Fungi
  • None of the above

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Q. 25 of Quiz- (Que-ID : 3118)

Analysis of xylem sap shows

  • presence of enzymes
  • presence of organic matter
  • presence of nutrients
  • presence of mineral salts

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Q. 14 of Quiz- (Que-ID : 2757)

In children hypothyroidism lead to

  • Goitre
  • Acromegaly
  • Cretinism
  • Myxoedema

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Q. 19 of Quiz- (Que-ID : 3062)

Respiratory quotient of carbohydrates is

  • 0.9
  • 1.2
  • 1
  • 0

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Q. 15 of Quiz- (Que-ID : 2733)

Whittakers definition of classification does not include

  • Algae
  • Protista
  • Plantae
  • mychota

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Q. 22 of Quiz- (Que-ID : 3365)

Turnip mosaic disease is caused by

  • bacteria
  • viruses
  • nematodes
  • fungi

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Q. 22 of Quiz- (Que-ID : 3040)

Growth regulator which induces parthenocarpy

  • IAA
  • ABA
  • Cytokinin
  • Ethylene

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Q. 22 of Quiz- (Que-ID : 3340)

Which one of the following diseases cannot be cured by taking antibiotics ?

  • Plague
  • Amoebiasis
  • Leprosy
  • Whooping cough

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Q. 14 of Quiz- (Que-ID : 2983)

Kidney transplantation is the ultimate method of correction in which case

  • Renal calculi
  • Renal failure
  • Uremia
  • None of the above

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Q. 7 of Quiz- (Que-ID : 3475)

Xerophyte Contains

  • Deep roots
  • Sunken stomata
  • Thick cuticle
  • All of these

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Q. 25 of Quiz- (Que-ID : 3143)

ψp denotes to

  • Water potential
  • Negative potential
  • Pressure potential
  • Solute potential

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Q. 23 of Quiz- (Que-ID : 3166)

Anti-parallel strands of a DNA molecule mean that

  • One strand turns anticlockwise
  • Phosphate groups at the start of two DNA strands (poles) are in opposite position
  • Phosphate groups of two DNA strands at their ends share the same position
  • One strand turns clockwise

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Q. 12 of Quiz- (Que-ID : 2830)

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because

  • offspring do not possess exact copies of parental DNA
  • DNA of only one parent is copied and passed on to the offspring
  • offspring are formed at different times
  • DNA of parent and offspring are completely different

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Q. 5 of Quiz- (Que-ID : 2948)

Which of the following steps in transcription is catalysed by RNA polymerase ?

  • Initiation
  • Elongation
  • Termination
  • All of the above

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Q. 1 of Quiz- (Que-ID : 3419)

Desired properties of plants and Animals are possible by which reproduction?

  • Genetic Engineering
  • Chromosomal Engineering
  • Ekabana technology
  • Bonsai technology

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Q. 24 of Quiz- (Que-ID : 3392)

Dragonflies are used to get rid of

  • mosquitoes
  • aphids
  • butterfly caterpillars
  • both (a) and (b)

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Q. 4 of Quiz- (Que-ID : 3522)

Acid Rain comes under which type of pollution?

  • Water pollution
  • Air pollution
  • Soil pollution
  • Sound Pollution

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Q. 25 of Quiz- (Que-ID : 3393)

A microbial biocontrol agent that can be used to control butterfly caterpillars is

  • Trichoderma polysporum
  • Bacillus thuringiensis
  • Streptococcus
  • mycorrhiza

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Q. 25 of Quiz- (Que-ID : 2893)

Intensely lactating mothers do not generally conceive due to the

  • suppression of gonadotropins
  • hypersecretion of gonadotropins
  • suppression of gametic transport
  • suppression of fertilisation

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Q. 3 of Quiz- (Que-ID : 3471)

Plant roots soil water is

  • Cellular water
  • Surface water
  • Humidity water
  • Gravitational water

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Q. 24 of Quiz- (Que-ID : 3142)

Munch hypothesis is based on

  • Translocation of food due to turgor pressure gradient and imbibition force
  • Translocation of food due to turgor pressure gradient
  • Translocation of food due to imbibition force
  • None of the above

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Q. 16 of Quiz- (Que-ID : 3309)

Which of the following statements is True ?

  • Wings to birds and insects are homologous organs.
  • Human hands and bird’s wings are analogous organs
  • Human hands and bat’s wings are analogous organs.
  • Flipper of penguin and dolphin are analogous organs

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Q. 10 of Quiz- (Que-ID : 3078)

In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be

  • ratio of oxygen evolved to carbon dioxide absorbed
  • increase in fresh weight
  • increase in dry weight
  • increase in carbohydrate

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Q. 16 of Quiz- (Que-ID : 3359)

Multiple ovulation embryo transfer technology is related to

  • transfer of super embryo
  • transfer of super eggs
  • super ovulation and embryo transfer
  • both (a) and (b)

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Q. 3 of Quiz- (Que-ID : 3221)

Exceptional roots of Cuscuta are

  • haustorial
  • coralloid
  • mucorhizal
  • all of the above

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Q. 17 of Quiz- (Que-ID : 3360)

Lean meat’ is cosidered to be of high quality because it has

  • lesser but easily digestible protein
  • lesser lipid content
  • more fat that makes the meqt softer
  • longer table life due to lesser chances of infection

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Q. 25 of Quiz- (Que-ID : 2693)

What condition occurs when not enough oxygen reaches heart muscle

  • High bp
  • Low bp
  • Angina
  • Heart failure

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Q. 19 of Quiz- (Que-ID : 2862)

Feathery stigma occurs in

  • pea
  • wheat
  • Datura
  • Caesalpinia

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Q. 8 of Quiz- (Que-ID : 3501)

Red Data Book is produced by

  • IUCN
  • WWF
  • IBWL
  • None of these

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Q. 14 of Quiz- (Que-ID : 3407)

Viral genome incroporatcd into host DNA is called:

  • Prophase
  • Protophage
  • Bacteriophage
  • None of these

Discuss View Answer

Q. 30 of Quiz- (Que-ID : 601)

What is the dominant chemical present in detergent powder ?

  • Hydrochloric acid
  • Sodium carbonate
  • Calcium carbonate
  • Sodium alkyl sulphate

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Q. 23 of Quiz- (Que-ID : 3141)

What is the effect of turgor pressure in Munch hypothesis?

  • Increase of turgor pressure
  • Decrease of turgor pressure
  • No change in turgor pressure
  • independent to water potential gradient

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Q. 8 of Quiz- (Que-ID : 3126)

Diffusion rate is affected by

  • temperature
  • membrane permeability
  • gradient of concentration
  • all of these

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Q. 6 of Quiz- (Que-ID : 2849)

From among the sets of terms given below, identify those that are associated with the gynoecium

  • Stigma, ovule, embryo sac, placenta
  • Thalamus, pistil, style, ovule
  • Ovule, ovary, embryo sac, tapetum
  • Ovule, stamen, ovary, embryo sac

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Q. 12 of Quiz- (Que-ID : 3030)

Plants grow throughout their life due to

  • presence of meristems
  • presence of vascular cambium
  • presence of xylem and phloem
  • presence of tracheids

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Q. 9 of Quiz- (Que-ID : 3052)

Out of 36 ATP molecules produced per glucose molecule during respiration

  • 2 are produced outside glycolysis and 34 during repiratory chain
  • 2 are produced outside mitochondria and 34 inside the mitochondria
  • all the formed inside mitochondria
  • 2 during glycolysis and 34 during kreds cycle

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Q. 8 of Quiz- (Que-ID : 2676)

Which among the following WBC secrete histamine, serotonin,heparin

  • Eosinophil
  • Neutrophil
  • Basophil
  • None of the above

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Q. 24 of Quiz- (Que-ID : 3417)

Transgenic plants are develop by

  • Introducing of foreign fenes
  • Clone and genetically modified genes
  • Genetic engineering
  • Purified genes

Discuss View Answer

Q. 3 of Quiz- (Que-ID : 2821)

Read the following statements and select the incorrect one.

  • Cucurbits and coconuts are monoecious plants
  • Papayas and date palms are dioecious plants.
  • Leeches and tapeworms are bisexual animals.
  • Sponges and coelenterates are unisexual animals

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Q. 16 of Quiz- (Que-ID : 3409)

Golden rice is a promising transgenic crop. When released for cultivation, it will help in :

  • High lysin content
  • Pest resistance
  • High protien content
  • High vitamin A content

Discuss View Answer

Q. 18 of Quiz- (Que-ID : 3086)

Which of the following process (C4 cycle) occurs in bundle sheath cells?

  • Regeneration
  • Fixation
  • Carboxylation
  • Decarboxylation

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Q. 20 of Quiz- (Que-ID : 2963)

Histone proteins are

  • basic, negatively charged
  • basic, positively charged
  • acidic, positively charged
  • acidic, negatively charged

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Q. 10 of Quiz- (Que-ID : 3378)

Cyanobacteria are

  • heterotrophs
  • chemotrophs
  • autotrophs
  • organotrophs

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