ScienceDaily Posted January 7, 2021 Share Posted January 7, 2021 Three studies uncovered the unusual sex chromosomes of platypus, emu and Pekin duck. Platypus have five pairs of sex chromosomes forming an unusual chain shape, while the sex chromosomes of emu and duck are not as different between sexes as those of human.View the full article Quote Link to comment Share on other sites More sharing options...
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