Do all animals have X/Y chromosomes?

Subject: Do all animals have X/Y chromosomes?

Date: Tue Feb 27 18:52:32 2001
Posted by Damien
Grade level: 7-9 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Genetics
ID: 983317952.Ge

Message:


Do all organisms that have separate sexes in their species possess X
and Y chromosomes, like dogs frogs nematodes flies etc...for example
thank you

Re: Do all animals have X/Y chromosomes?

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