TLS Online TPP Program

#Question id: 1653


Which of the following statements does NOT apply to IgG?

#SCPH01 Biochemistry
  1. Appears early in the primary immune response

  2. Neutralizes bacterial toxins

  3. Can fix complement

  4. Crosses the human placenta

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TLS Online TPP Program

#Question id: 10958

#I Life Science/ Life Sciences Group – I-V

Which of the following would be appropriate therapy for massive pulmonary embolism?

TLS Online TPP Program

#Question id: 13076

#SCPH05 I Biotechnology

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.

TLS Online TPP Program

#Question id: 763

#SCPH05 I Biotechnology

Which of the following could be an effect of miRNA regulation?

TLS Online TPP Program

#Question id: 10385

#I Life Science/ Life Sciences Group – I-V

The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as

TLS Online TPP Program

#Question id: 10791

#SCPH05 I Biotechnology

Following are certain statements regarding furanocoumarins;

 a) furanocoumarins have an attached furan ring

 b) These compounds are toxic until they are activated by sunlight in the ultraviolet A (UV-A) region (320–400 nm)  

 c) Light activated furanocoumarins can insert themselves into the double helix of DNA and bind to the pyrimidine bases, thus blocking transcription and repair and leading eventually to cell death   

 d) Phototoxic furanocoumarins are especially abundant in members of the Umbelliferae family, including celery, parsnip, and parsley.

 Which of the following combination from the above statements is correct?