Prophase siv sijhawm pes tsawg teev?

Video: Prophase siv sijhawm pes tsawg teev?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Los ntawm qhov nquag ntawm theem mitotic, txhais raws li qhia hauv kab lus ua ntej (El-Alfy & Leblond, 1987) thiab kho rau qhov tshwm sim ntawm lawv qhov tshwm sim, nws tau kwv yees tias prophase ntev li 4.8 teev; metaphase yog '0,2 h; tsis paub , 0.06 hr thiab telophase, 3.3 hr, thaum lub interphase ntev li 5.4 hr.

Hauv qhov no, lub xov tooj ntawm tes siv sijhawm ntev npaum li cas hauv prophase?

Peb pom tias hauv 24-teev sijhawm, tus hlwb peb pom siv 1000.2 feeb hauv interphase, 180 feeb hauv prophase , 128.2 feeb hauv metaphase, 77.8 feeb hauv tsis paub , thiab 51.8 feeb hauv telophase.

Ib yam li ntawd, pes tsawg feem pua ntawm lawv siv sijhawm nyob rau hauv mitosis? Cov feem pua ntawm cov cell hauv txhua tus neeg sawv cev rau feem pua ntawm lub voj voog ntawm tes muab ib lub cell siv hauv txhua theem, yog li ntawd siv txog 10-20% ntawm nws sij hawm hauv mitosis cov tsos mob thiab 80-90% hauv interphase.

Qhov thib ob, vim li cas prophase siv sijhawm ntev?

Cells siv li ntawm 14 feem pua ntawm lub voj voog ntawm tes hauv prophase . Qhov no yog qhov loj tshaj tom ntej ntawm lub sijhawm siv nyob rau theem tom qab interphase. Cov theem no siv ntev dua li lwm tus vim hais tias lub hnab ntawv nuclear tawg thiab cov microtubules yuav tsum txuas mus rau chromosomes. Metaphase ua raws li prophase.

Nws siv sijhawm ntev npaum li cas los xam mitosis?

(P + M + A + T) - cov sum ntawm tag nrho cov hlwb nyob rau hauv theem raws li prophase, metaphase, anaphase thiab telophase, feem; N - tag nrho cov xov tooj ntawm tes. Los ntawm lub voj voog ntawm tes, 1.2% yog mitotic thiab qhov seem yuav pom tseeb yog interphase. Yog li, 1.2% yog 30 feeb, yog li 100% (ntev ntawm tag nrho cov xov tooj ntawm tes) yog 2500 feeb (42 teev).

Pom zoo:

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