Cov txheej txheem:
Video: Yuav ua li cas koj Analyze ib tug pedigree?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyeem ntawv pedigree
- Txiav txim siab seb qhov zoo li cas yog qhov tseem ceeb lossis qhov tsis zoo. Yog tias qhov zoo tshaj plaws, ib tus niam txiv yuav tsum muaj qhov zoo.
- Txiav txim siab seb daim ntawv qhia qhia tias muaj kev sib deev lossis kev sib deev (feem ntau X-txuas) qhov zoo. Piv txwv li, nyob rau hauv X-txuas recessive yam ntxwv, txiv neej feem ntau cuam tshuam ntau tshaj li poj niam.
Ua raws li qhov no saib, cov ntaub ntawv hauv cov kab kos pedigree txheeb xyuas li cas?
Ib tug series ntawm cov cim yog siv los sawv cev sib txawv ntawm ib pedigree . Hauv qab no yog cov cim tseem ceeb siv thaum kos duab a pedigree . Ib zaug phenotypic cov ntaub ntawv yog sau los ntawm ob peb tiam thiab cov pedigree yog kos, ceev faj tsom xam yuav tso cai rau koj los txiav txim seb qhov zoo li cas yog qhov tseem ceeb los yog recessive.
Kuj Paub, cov ntaub ntawv dab tsi tuaj yeem nrhiav tau ntawm ib tug pedigree? A pedigree Daim ntawv qhia yog ib daim duab uas qhia txog qhov tshwm sim thiab qhov tshwm sim ntawm phenotypes ntawm ib lub noob los yog kab mob thiab nws cov poj koob yawm txwv los ntawm ib tiam mus rau lwm tiam, feem ntau tib neeg, qhia dev, thiab haiv neeg nees.
Yog li ntawd, dab tsi yog yam ntxwv ntawm ib tug tseem ceeb pedigree?
Yam ntxwv ntawm autosomal yam tseem ceeb : -Txhua tus neeg cuam tshuam muaj tsawg kawg yog ib tus niam txiv cuam tshuam. -Thaum tus cwj pwm zoo (lossis kab mob) tsis tshua muaj nyob hauv cov pej xeem, qhia cov qauv ntsug ntawm qhov qub txeeg qub teg hauv cov pedigree (muaj kev cuam tshuam rau txiv neej thiab poj niam hauv txhua tiam).
Koj yuav piav li cas txog ib tug pedigree?
A pedigree daim ntawv qhia txog tsev neeg tsob ntoo, thiab qhia cov tswv cuab ntawm tsev neeg uas raug cuam tshuam los ntawm caj ces. Daim ntawv qhia no qhia txog plaub tiam neeg ntawm ib tsev neeg nrog plaub tus neeg uas raug cuam tshuam los ntawm daim ntawv ntawm kev tsis pom kev xim. Cov voj voog sawv cev cov poj niam thiab cov squares sawv cev rau txiv neej.
Pom zoo:
Yuav ua li cas koj qhia yog hais tias ib tug transformation yog ib tug dilation?
Ib qho kev piav qhia ntawm qhov dilation suav nrog qhov ntsuas qhov ntsuas (lossis qhov piv) thiab qhov nruab nrab ntawm qhov dilation. Qhov chaw ntawm dilation yog ib qho chaw ruaj khov hauv lub dav hlau. Yog tias qhov ntsuas qhov ntsuas ntau dua 1, daim duab yog qhov loj (qhov ncab). Yog tias qhov ntsuas qhov ntsuas nyob nruab nrab ntawm 0 thiab 1, daim duab yog qhov txo qis (qhov qis)
Yuav ua li cas koj txiav txim siab yog hais tias ib tug muaj nuj nqi muaj ib tug kab rov tav tangent?
Kab rov tav kab muaj txoj kab nqes ntawm xoom. Yog li ntawd, thaum lub derivative yog xoom, cov kab tangent yog kab rov tav. Txhawm rau nrhiav cov kab kab rov tav tangent, siv qhov derivative ntawm txoj haujlwm los nrhiav qhov xoom thiab ntsaws lawv rov qab rau hauv qhov sib npaug qub
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Yuav ua li cas yog ib tug piv txwv ntawm ib tug rational naj npawb uas tsis yog ib tug tag nrho?
Tus lej "rational" yog qhov piv ntawm ob tus lej. Piv txwv li, cov hauv qab no yog cov lej rational, thiab tsis muaj leej twg yog tus lej: 1 / 2. 2 / 3
Yuav ua li cas ib tug geologist yuav qhia tau hais tias ib tug quav yog ib tug syncline thiab anti-line?
Geologic Structures (Part 5) Anticlines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips deb ntawm lub crest. Synclines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips mus rau lub trough ntawm lub quav. Koj tuaj yeem nco qab qhov sib txawv los ntawm kev ceeb toom tias anticlines tsim "A" zoo, thiab synclines tsim hauv qab ntawm "S."