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TLS Online TPP Program

#Question id: 1657

Which of the following statements is TRUE of IgD?

#SCPH05 I Biotechnology

  1. IgD is pentameric

  2. IgD is resistant to proteolytic degradation

  3. IgD is present mainly as a surface receptor on B-cells

  4. IgD is present with unusual frequency in myelomas

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TLS Online TPP Program

#Question id: 4198

#SCPH28 | Zoology

An elongation factor EF-Ts serves mainly to
TLS Online TPP Program

#Question id: 497

#SCPH05 I Biotechnology

Which of the following statements about the pentose phosphate pathway is incorrect?
TLS Online TPP Program

#Question id: 2636

#SCPH01 Biochemistry

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site
TLS Online TPP Program

#Question id: 12104

#SCPH28 | Zoology

Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation?
TLS Online TPP Program

#Question id: 4303

#SCPH06 I Botany

Which component is not directly involved in translation?