2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov chaw kuaj kab mob tshwm sim thaum lub sijhawm M. Cov txheej txheem qhia txog kev hloov pauv ntawm tes ntawm prometaphase thiab anaphase.
Lub sijhawm twg ntawm mitosis yog qhov chaw kuaj kab mob?
Daim duab ntawm lub voj voog ntawm tes nrog cov ntawv txheeb xyuas. G1 checkpoint nyob ze ntawm qhov kawg ntawm G1 (ze rau qhov kev hloov G1 / S). G2 checkpoint nyob ze ntawm qhov kawg ntawm G2 (ze rau qhov kev hloov ntawm G2 / M). Spindle checkpoint yog ib feem ntawm M theem, thiab tshwj xeeb tshaj yog, ntawm tus metaphase / anaphase hloov.
Dab tsi yog qhov chaw kuaj kab mob hauv lub voj voog ntawm tes?
Nyob rau hauv mitosis, lub spindle assembly checkpoint (SAC) controls the proper attachment to and alignment of chromosomes on the spindle. SAC kuaj pom qhov yuam kev thiab ua rau lub voj voog ntawm tes raug ntes hauv metaphase, tiv thaiv chromatid sib cais.
Thaum lub sijhawm twg ntawm lub voj voog ntawm tes ua qhov chaw kuaj kab ntxaiv tshwm sim?
M chaw kuaj mob tshwm sim ze rau qhov kawg ntawm theem metaphase ntawm mitosis. M checkpoint tseem hu ua spindle checkpoint vim nws txiav txim siab seb tag nrho cov viv ncaus chromatids puas raug txuas rau spindle microtubules.
Lub hom phiaj ntawm qhov chaw kuaj kab ntxaiv hauv M theem yog dab tsi?
Lub chaw kuaj kab ntxaiv yog tus tswj hwm ntawm chromosome cais hauv mitosis thiab meiosis. Nws txoj haujlwm yog txhawm rau tiv thaiv qhov pib ua ntej anaphase ua ntej chromosomes tau ua tiav kev sib txuas ntawm bipolar rauspindle.
Pom zoo:
Thaum muab piv cov kab kab kab thiab cov kab ntsig flatworms qhov twg muaj tseeb?
Ib tug flatworm muaj nyias, dorsoventrally flattened lub cev. Roundworms yog ntau cylindrical hauv cov duab thiab tapered mus rau qhov zoo ntawm ib kawg. Ib yam li ntawd, cov kab mob roundworms muaj ib txheej txheej txheej hu ua cuticle uas lawv tau rov ua dua thoob plaws hauv lawv lub neej thiab thaum lawv loj hlob.
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Thaum twg tus kab mob etiology tsis paub tus kab mob hais tias yog?
Idiopathic: Tsis paub qhov laj thawj. Txhua yam kab mob uas tsis paub meej lossis tsis paub keeb kwm yuav raug hu ua idiopathic. Piv txwv li, mob idiopathic polyneuritis, diffuse idiopathic skeletal hyperostosis, idiopathic pulmonary fibrosis, idiopathic scoliosis, thiab lwm yam.
Rau kev phais mob hauv tsev kho mob thaum qhov kev kuaj mob ua ntej txawv?
Rau kev phais mob hauv lub tsheb thauj neeg mob, sau tus lej kuaj mob uas qhov kev phais tau ua. Yog tias qhov kev kuaj mob tom qab tau paub tias txawv ntawm qhov kev kuaj mob ua ntej thaum lub sijhawm kuaj pom tseeb, xaiv qhov kev kuaj mob tom qab phais rau coding, vim nws yog qhov tseeb tshaj plaws.
Nyob thaum lub sij hawm tu cov kab mob kab mob no nyob qhov twg?
PI (Lub Chaw Saib Xyuas Kev Loj Hlob) - Ntawm no cov niam txiv ntawm kev lag luam nteg tau rov tsim kho. (3) Grainage: Cov chaw tsim khoom uas tsis muaj kab mob coj mus muag cov noob raug tsim tawm hauv huab hwm coj los muab rau rov qab hu ua Grainages.
