I'm sorry for the incredibly simple question, I just can't seem to find any answers elsewhere online.
I am a high school student currently studying for the upcoming AP biology exam, and recently I have realised that I do not quite understand chromosomes. To be specific, I understand what they are (the condensed form of chromatin that one sees when viewing a dividing cell), but my understanding is still lacking when it comes to:

  • Ploidy, specifically when it changes.
  • Alleles and how they move/interact during meiosis.
  • How homologous chromosomes work: When do they occur? Is each chromatid pair identical, or is one chromatid in each pair from each parent?

I made a diagram that details my current understanding, because it can be a bit difficult to describe what I don't understand, but I can try to elaborate more if necessary.
my current understanding of chromosome behaviour

If this is the wrong sort of place to ask this question, some advice on a better place to ask would be greatly appreciated.


closed as too broad by David, theforestecologist Apr 29 at 18:06

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