Video: Vim li cas chromosomes nyob rau ntawm kab zauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Metaphase. Qhov no tseem hu ua metaphase phaj. Cov spindle fibers xyuas kom meej tias tus muam chromatids yuav sib cais thiab mus rau cov ntxhais sib txawv thaum lub cell faib. Chromosomes , suav nrog tus muam chromatids, kab nyob rau ntawm qhov equator los yog nruab nrab ntawm tes thaum lub sij hawm metaphase.
Yog li ntawd, vim li cas chromosomes nyob rau hauv nruab nrab ntawm lub cell?
Ua ntej a cell faib, nws tag nrho cov txheej chromosomes yog duplicated kom ob tug tshiab tsim hlwb tau txais ib daim ntawv teev tag nrho. Hauv tsiaj hlwb , cov chromosomes kab nyob rau hauv nruab nrab ntawm lub cell . Thaum lub chromosomes yog off- chaw , lawv cov kev sib txuas rau spindle yog hloov.
Dhau li saum toj no, dab tsi yog chromosomes kab? Ua ke, cov spindle fibers los ntawm ob tog centriole coj tus chromosome mus rau qhov chaw ntawm lub mitotic spindle. Qhov no theem ntawm mitosis yog hu ua metaphase thiab kev npaj ntawm chromosomes lined nyob rau hauv qhov chaw ntawm lub mitotic spindle yog hu ua metaphase phaj.
Tsis tas li ntawd, nyob rau theem twg ua cov chromosomes kab ntawm txoj kab nruab nrab?
Koj cov lus nug tsis meej heev, tab sis yog tias kuv tsis yuam kev koj tsis paub tias nyob rau theem twg cov chromosomes kab ntawm kab zauv. Nyob rau hauv tas li ntawd, qhov no tshwm sim ntawm lub metaphase ntawm lub cell division voj voog. Qhov no yog vim li cas cov chromosomes lined nyob rau ntawm txoj kab nruab nrab yog hais tias tsim ib tug metaphase phaj.
Homologs kab nyob rau theem twg?
METAPHASE
Pom zoo:
Nyob rau theem twg ua homologous chromosomes kab ntawm kab zauv?
Hauv metaphase I, 23 khub ntawm homologous chromosomes kab nyob rau hauv txoj kab nruab nrab lossis lub phaj metaphase ntawm lub xovtooj. Thaum lub sij hawm mitosis, 46 tus neeg chromosomes kab thaum lub sij hawm metaphase, tab sis thaum lub sij hawm meiosis I, 23 homologous khub ntawm chromosomes kab
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Yuav ua li cas los hloov ib tug quadratic kab zauv los ntawm vertex daim ntawv rau lub tshuab xam zauv?
Lub laij lej rau kev hloov pauv los ntawm daim ntawv yooj yim mus rau vertex daim ntawv y = x2 + 3x + 5. x2 + 3x + 5 = || +(p2)2-(p2)2=0. || a2+2ab+b2=(a+b)2. || -1⋅-1=+1. xS=-32=-1.5. yS=-(32)2+5=2.75
Vim li cas txoj kab kab rov tav muaj txoj kab nqes ntawm 0?
Mathwords: Zero Slope. Txoj kab nqes ntawm kab rov tav. Kab rov tav kab muaj nqes 0 vim tias tag nrho nws cov ntsiab lus muaj tib y-coordinate. Yog li ntawd, tus qauv siv rau txoj kab nqes ntsuas rau 0
Qhov kab zauv twg sawv cev rau kab qhia ntawm daim duab Y 2x?
Slope-intercept form yog y = mx + b, qhov m yog txoj kab nqes thiab b yog y-intercept. Qhov no ua rau qhov sib npaug ntawm peb kab y = 2x + 0 lossis y = 2x