TLS Online TPP Program

#Question id: 1730


What is the T-cell ligand binding B7 on a professional antigen-presenting cell?

#I Life Science/ Life Sciences Group – I-V
  1. CD28

  2. CD2

  3. LFA-1

  4. ICAM-1

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TLS Online TPP Program

#Question id: 13074

#SCPH28 | Zoology

Type of probe used in RFLP;

TLS Online TPP Program

#Question id: 13075

#SCPH01 Biochemistry

Radioisotopes must be used in RFLP and RAPD markers

TLS Online TPP Program

#Question id: 13075

#SCPH05 I Biotechnology

Radioisotopes must be used in RFLP and RAPD markers

TLS Online TPP Program

#Question id: 13075

#SCPH06 I Botany

Radioisotopes must be used in RFLP and RAPD markers

TLS Online TPP Program

#Question id: 13075

#SCPH28 | Zoology

Radioisotopes must be used in RFLP and RAPD markers

TLS Online TPP Program

#Question id: 13076

#SCPH01 Biochemistry

Restriction fragment length polymorphism denotes that a single restriction enzyme produces fragments of different lengths from the same stretch of genomic DNA of different strains of a species or from different related species. RFLPs are detected as follows:

i.  Large molecular weight genomic DNA is isolated from several strains or related species;

ii.  The fragments in these digests are separated through electrophoresis

iii.  These 'DNAs are then digested with a selected restriction enzyme

iv.  Exposed to a suitably radio-labelled appropriate DNA probe under conditions favouring DNA: DNA hybridization

v.  The resulting gel lanes are transferred and fixed to a suitable solid support and

vi.   The free probes are removed

vii.  The fragments to which the probe has hybridized are detected by filming them as distinct bands on a suitable photofilm through autoradiography.