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