Summary: Molecular Cell Biology

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Read the summary and the most important questions on Molecular Cell Biology

  • Introduction

    This is a preview. There are 17 more flashcards available for chapter 05/02/2018
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  • In FOP, is there more or less bone?

  • In what type of cells does FOP start?

    In the ligamental tissue.
  • What is the usual cause of death in FOP?

    Pneumonia, as the ribs become less and less compliant to movement.
  • What is a birth sign of FOP?

    A shortenend Big Toe
  • Are DNA and RNA postively or negatively charged? and how come?

    Negatively charged, not all oxygen in the phosphate group is bound optimally. Some have only a single bond, leading to a net negative charge on the molecule.
  • To which end is DNA duplicated?

    3 to 5
  • How come the human DNA so well packed?

    Great use of space at many levels
    •  DNA is double-stranded in a helixform
    • The helix is wound around 'beads' of histones
    • The helix + histones (nucleosome) is packed as a fiber called chromatine
    • Chromatine is then folded in many many loops to form a chromatide.
  • How is the fundamental level of chromatin packing called?

    nucleosome (DNA helix + histones)
  • Can you transcribe condensed DNA?

  • What is the difference between euchromatin and heterochromatin?

    • euchromatin is not tightly bound and therefore transcrible. Heterochromatin is tightly bound and therefore not transcrible.

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