meiosia
TRANSCRIPT
![Page 1: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/1.jpg)
![Page 2: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/2.jpg)
Meiosia murrizketa-zatiketa da, zelula ama diploide batetik lau zelula alaba haploide sortzen baitira; hau da, zelula alaba bakoitzak zelula amaren ADN-a kantitatearen erdia du.
Gonadetan gertatzen da meiosia eta gametoak sortzen dira prozesu honetan eta sortzen diren zelulak guztiz desberdinak dira, hau da, zelula haploideak.
![Page 3: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/3.jpg)
![Page 4: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/4.jpg)
ADN-a bikoiztu egiten da
![Page 5: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/5.jpg)
Kromosoma ikusgaiak bikoteka jartzen dira ADN zatiak trukatuz.Mintz nuklearra eta nukleoloa desagertzen dira
![Page 6: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/6.jpg)
Kromosomak binaka jartzen dira zelularen ekuatorean.
![Page 7: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/7.jpg)
Ardatz mitotikoak kromosoma homologoak banandu eta zelularen muturretara eramaten dituzte.
![Page 8: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/8.jpg)
Nukleoak osatzen hasten dira berriro.
![Page 9: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/9.jpg)
Zelula zatitu egiten da.
![Page 10: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/10.jpg)
![Page 11: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/11.jpg)
Interfaserik gabe, ardatza eratu, eta kromosomak bina kromatidaz ekuatore plakarantz abiatzen dira.
![Page 12: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/12.jpg)
Kromosomak zelularen ekuaturean kokatzen dira.
![Page 13: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/13.jpg)
Kromatidak bereizi egitan dira, bakoitza zelularen mutur batetara joaten.
![Page 14: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/14.jpg)
Lau zelula haploide sortu eta nukleoa sortzen hasten da berriz.
![Page 15: Meiosia](https://reader031.vdocuments.co/reader031/viewer/2022020101/55a239281a28ab32078b469e/html5/thumbnails/15.jpg)
Zelulak zatitu egiten dira, lau zelula alaba haploideak sortuz, zelula bakoitzak bere amaren kromosoma kopuru erdia du.