Monday, 20 May 2013

3.13 understand that the nucleus of a cell contains chromosomes on which genes are located

In the nucleus of a cell there are chromosomes; these are long sections of tangled DNA, sections of which are different genes.

3 comments:

  1. Coiled or super-coiled is probably more accurate than tangled

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  2. The Biology Syllabus has changed…

    Here is a New blog for the 2017 Syllabus:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  3. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/313-understand-that-nucleus-of-cell.html

    ReplyDelete