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  Basic science in obstetrics and gynaecology : a textbook for MRCOG Part I. 4th ed.

  edited by Phillip Bennett, Catherine Williamson.

  Contents:
  Structure and function of the genome / Peter Dixon
  Clinical genetics / Dorothy Trump
  Embryology / Kate Hardy
  Fetal and placental physiology / Sailesh Kumar
  Applied anatomy / Sarah Paterson-Brown
  Pathology / Neil Sebire
  Microbiology and virology / Geoffrey Ridgway & Paul Taylor
  Immunology / Andrew George
  Biochemistry / Fiona Lyall
  Physiology / David Williams, Anna Kenyon & Dawn Adamson
  Endocrinology / Mark Johnson
  Drugs and drug therapy / Hassan Shehata
  Physics / David Talbot
  Statistics and evidence-based health care / Louise Brown
  Clinical research methodology / Andrew Shennan & Annette Briley
  Multiple choice questions.

  Digital Access ScienceDirect 2010
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• Article

  The relationship between guanosine tetraphosphate, polysomes and RNA synthesis in amino acid starved Escherichia coli.

  Donini P, Santonastaso V, Roche J, Cozzone AJ.

  Mol Biol Rep. 1978 Feb 28;4(1):15-9.

  A relA+ strain of E. coli with four amino acid requirements was starved separately for each amino acid, after which the levels of polysomes, guanosine-5'-diphosphate-3'-diphosphate and the residual net synthesis of RNA were determined. The polysome level and guanosine-5'-diphosphate-3'-diphosphate production were coordinately affected by starvation for the different amino acids, whereas no correlation was found between these two parameters and residual RNA synthesis. The main conclusion stemming from these results is that guanosine-5'-diphosphate-3'-diphosphate cannot act as the sole effector molecule in stringent control of RNA synthesis.

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  PubMed