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Tipe XY<br />
Drosophyla<br />
• Memiliki 3 ps autosom dan 1 ps seks kromosom<br />
• Tata nama kromosom utk Drosophyla <br />
I = Krom X ; II = submetasentris ; III = metasentris ;<br />
IV = terkecil<br />
• Lalat betina --- 3 AAXX Homogametik<br />
• Lalat jantan --- 3 AAXY Heterogametik<br />
• Apabila terjadi non disjunction selama proses<br />
gametogenesis, akan memunculkan individu yang<br />
beraneka ragam<br />
TO2K 2
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