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    'The linked alleles are normally inherited together because they do not segregate independently at meiosis, unless chiasmata have been formed between then.'

    How does the chiasmata separate the two genes exactly?
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    anyone?
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    A chiasmata doesn't separate two genes. It is the point at which two non-sister homologous chromatids exchange genetic material during meiotic cross-over.

    The point is that linked alleles are inherited together unless there has been homologous recombination between them because if that is the case then they will segregate.
 
 
 
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