Video: Qhov feem pua ntawm cov noob germinate?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog ib qho kev ntsuas ntawm germination lub sijhawm kawm thiab feem ntau yog qhia raws li a feem pua e.g. yog 85% germination tus nqi qhia tias kwv yees li 85 tawm ntawm 100 noob tej zaum yuav tawg nyob rau hauv raws li tej yam kev mob ntawm lub germination lub sij hawm muab.
Ib yam li ntawd, tib neeg nug, koj ua li cas suav feem pua ntawm cov noob germination?
Cov equation los xam germination feem pua yog: GP = noob germinated /tag nrho noob x 100. Cov germination tus nqi muab ib qho ntsuas ntawm lub sijhawm kawm ntawm noob germination . Kev loj hlob tus nqi yog txiav txim los ntawm xam GP ntawm lub sijhawm sib txawv tom qab cog thiab tom qab ntawd npaj cov ntaub ntawv no.
Ib yam li ntawd, cov noob yuav tsum tau germinate li cas? Tag nrho noob xav tau dej, oxygen, thiab kub kom zoo nyob rau hauv thiaj li yuav tawg . Ib txhia noob xav tau teeb pom kev zoo thiab. Ib txhia tawg zoo dua nyob rau hauv tag nrho lub teeb thaum lwm tus xav tau tsaus rau tawg . Thaum a noob yog raug rau cov xwm txheej kom raug, dej thiab oxygen raug coj mus rau hauv noob lub tsho tiv no.
Ua li no, pes tsawg feem pua ntawm cov noob hauv ib pob yuav germinate?
Noob ntim rau xyoo tam sim no yuav tsum muaj 80 feem pua los yog siab dua germination tus nqi, tab sis raws li cov noob laj, the germination tus nqi txo.
Nws siv sijhawm ntev npaum li cas rau cov noob kom tawg?
1 mus rau 2 lub lis piam
Pom zoo:
Dab tsi yog qhov tseem ceeb ntawm cov noob caj noob ces rau kev loj hlob ntawm fetal?
Kev soj ntsuam ntawm lub luag haujlwm ntawm chromosomes hauv tib neeg txoj kev loj hlob thiab kev loj hlob ntawm lub fetus tau mob siab rau qhov txawv txav ntawm chromosomal. Cov noob muaj cov lus qhia rau kev loj hlob thiab kev loj hlob. Qee qhov kev hloov gene ua rau cov gene faulty kom cov lus nyeem tsis raug lossis tsis nyeem tag nrho los ntawm lub xovtooj ntawm tes
Qhov feem ntawm 33 1 3 feem pua yog dab tsi?
Piv txwv tus nqi feem pua ntawm cov zauv feem 25% 0.25 1/4 331/3% 0.333 1/3 50% 0.5 1/2 75% 0.75 3/4
Dab tsi yog txhais los ntawm cov noob tseem ceeb thiab cov noob caj noob ces?
(Nyob rau hauv cov ntsiab lus ntawm caj ces, ib qho tseem ceeb tshaj plaws yog ib qho uas yog phenotypically qhia hauv heterozygotes). Ib qho tseem ceeb tshaj plaws yog tawm tsam qhov tsis zoo uas tshwm sim tsuas yog thaum muaj ob daim ntawv theej ntawm cov noob. (Nyob rau hauv cov ntsiab lus genetic, ib tug recessive zoo yog ib tug uas yog phenotypically qhia tsuas yog nyob rau hauv homozygotes)
Txoj cai thermodynamic twg hais tias koj Tsis tuaj yeem hloov 100 feem pua ntawm cov cua sov rau hauv cov khoom siv hluav taws xob ntawm cov lus teb xaiv?
Txoj Cai thib ob
Ib puag ncig ntawm ib lub xov tooj ntawm tes thiab cov kab mob cuam tshuam li cas ntawm cov noob caj noob ces?
Splicing ntawm mRNA nce tus naj npawb ntawm cov protein sib txawv uas lub cev muaj peev xwm tsim tau. Gene qhia yog tswj los ntawm cov proteins uas khi rau cov hauv paus hauv paus hauv DNA. Ib puag ncig ntawm ib lub xovtooj ntawm tes thiab ntawm lub cev muaj feem cuam tshuam rau cov noob caj noob ces