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RE: Sex change in Apistos???

Forgive my limited knowledge of fish genetics, but if there is a change
in sex and successful spawns, is the genetic information passed on the
same way everytime, or does it change?  ( I am thinking of X and Y
chromosomes)...will the once female-now male produce Y
chromosome-related genetic material to pass to the fry? or has anyone
noticed or documented spawns of only female fry in these cases?  Does
sex-linked genetic material exist in fish?  it seems someone opened a
whole can of blackworms...

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