Multiple Choice Questions

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Which one of the following is used as a vector for cloning the gene into higher organisms?

  • Baculovirus

  • Salmonella typhimurium

  • Rhizopus nigricans

  • Rhizopus nigricans


D.

Rhizopus nigricans

Retroviruses are RNA-containing animal viruses that replicate through a DNA intermediate.  Retroviruses in animals have the ability to transform normal cells into cancerous cells. A better understanding of the act of delivering genes by pathogen into useful vectors for delivering genes of interest of humans. Retroviruses have been disarmed and are now used to deliver desirable genes into animals cells.

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Breeding of crops with high levels of minerals, vitamins and proteins is called

  • somatic hybridization

  • biofortification

  • biomagnification

  • biomagnification

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Which one of the following palindromic base sequences in DNA can be easily cut at about the middle be some particular restriction enzyme?

  • 5'-CGTTCG -3'
    3'-ATCCTA-5'

  • 5'-GATATG-3'
    3'-CTACTA-5'

  • 5'-GAATTC-3'
    3'CTTAAG-5'

  • 5'-GAATTC-3'
    3'CTTAAG-5'

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Select the correct statement from the ones given below with respect to dihybrid cross. 

  • Tightly linked genes on the same chromosome show higher recombinations

  • Genes far apart on the same chromosome show very few recombinations

  • Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.

  • Genes loosely linked on the same chromosome show similar recombinations as the tightly linked ones.

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Which one of the following is an example of ex- situ conservation?

  • Wildlife sanctuary

  • Seed bank

  • Sacred groves

  • Sacred groves

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The one aspect which is not a salient feature of genetic code is its being

  • degenerate

  • ambiguous

  • universal

  • universal

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The biomass available for consumption by the herbivores the decomposers is called

  • net primary productivity

  • secondary productivity

  • standing crop

  • standing crop

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A common biocontrol agent for the control of plant diseases is

  • Baculovirus

  • Bacillius thuringiensis

  • Glomus

  • Glomus

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Widal test is used for the diagnosis of 

  • Malaria 

  • pneumonia

  • tuberculosis

  • tuberculosis

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Which one of the following statements is correct with respect to AIDS?

  • The HIV can be transmitted through eating food together with an infected person

  • Durg addicts are least susceptible to HIV infection

  • AIDS patients are being fully cured cent percent with proper care and nutrition

  • AIDS patients are being fully cured cent percent with proper care and nutrition

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