Multiple Choice Questions

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Allelic sequence variation where more than one variant allele at a locus in a human population with a frequency greater than 0.01 is referred to as

  • DNA polymorphism

  • Multiple allelism

  • SNP

  • EST


A.

DNA polymorphism

Allelic sequence variation is described as DNA polymorphism if more than one variant (allele) at a locus occurs in the human population with a frequency greater than 0.01. In simple terms, if an inheritable mutation is observed in a population at high frequency. It is referred to as DNA polymorphism.


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Given below is a sample of portion of DNA strand given the base sequence on the opposite strand. What is so special show in it?

5’−GAATTC….3’

3’−CTTAAG … 5’

  • Detection mutation

  • Start codon at 5′ end

  • The palindromic sequence of base pairs

  • Replication completed


Besides dung, the weed that can be used in biogas production is

  • Hydrilla

  • Solanum- nigrum

  • Eichhornia Crassipes

  • Parthenium hysterophorus


In recombinant DNA technique, the term vector refers to

  • Donor DNA, is identified and picked up through electrophoresis

  • Plasmid transfers DNA into living cell

  • Collection of the entire genome in form of plasmid

  • Enzyme, cuts the DNA at specific sites


The mobile genetic element is

  • Transposon

  • Mutation

  • Endonuclease

  • Variation


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Bacillus thuringiensis (Bt) strains have been used for designing novel

  • Bio metallurgical technique

  • Bio mineralization process

  • Bio Insecticidal Plants

  • Bio Fertilizers


The statement All biological catalysts are protein is no longer valid after the discovery of

  • ribonuclease

  • ribozyme

  • RNAs

  • DNAs


When two unrelated individuals or lines are crossed, the performance of F1 hybrid in often superior to both of its parents. This phenomenon is called

  • Transformation

  • Heterosis

  • Splicing

  • Meta Morphosis


In the given diagram, parts labelled as A, B, C, D,  E and F are respectively identified as

  • Synergids, polar nuclei, central cell, antipodals, filiform apparatus and egg

  • Polar nuclei, egg, antipodals, central cell, filiform apparatus and synergids

  • Egg, synergids, central cell, filiform apparatus, antipodals and polar nuclei

  • Central cell, polar nuclei filiform apparatus, antipodals, synergids and egg


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Bacillus thuringiensis (Bt) strains have been used for designing novel

  • bio metallurgical technique

  • bio mineralization process

  • bio insecticidal plants

  •  bio fertilizers