I was googling around and found only articles related to XY differences in expression. Can you please clarify if homologous genes/chromosomes have about the same levels of expression in a cell or one of them "stays silent" and another is "switched on" somehow?

  • 2
    $\begingroup$ It's a complicated subject. Try searching for "genetic imprinting" and also for "epigenetics" and for "gene regulation in cis and trans". $\endgroup$
    – Armand
    Mar 9, 2022 at 3:57
  • $\begingroup$ thanks for a feedback! Everything is a complicated subject, I'm a software engineer by the way ;) $\endgroup$ Mar 10, 2022 at 3:26


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