Cov txheej txheem:
- Leej twg thawj zaug siv Drosophila?
- Thomas Morgan nrhiav tau dab tsi?
- Leej twg hu ua Drosophila melanogaster?
- Puas yog cov yoov yoov tsis zoo?
Video: Leej twg nrhiav tau drosophila melanogaster?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Ib hnub xyoo 1910, American geneticist Thomas Hunt Morgan peered los ntawm ib txhais tes lens ntawm ib tug txiv neej txiv hmab txiv ntoo ya, thiab nws pom nws tsis zoo. Es tsis txhob muaj lub qhov muag liab ci ntsa iab ntawm cov tsiaj qus Drosophila melanogaster, tus yoov no muaj qhov muag dawb.
Leej twg thawj zaug siv Drosophila?
Nws yog yuav luag 100 xyoo dhau los, xyoo 1909, uas yog ib tus kws kho mob embryologist, Thomas Hunt Morgan, xaiv cov txiv hmab txiv ntoo ya Drosophila melanogaster ua tus qauv kab mob rau kev sim kev kawm ntawm evolution.
Thomas Morgan nrhiav tau dab tsi?
4, 1945, Pasadena, Calif.), American zoologist thiab geneticist, nto moo rau nws txoj kev tshawb fawb nrog cov txiv hmab txiv ntoo yoov (Drosophila) los ntawm nws tsim txoj kev xav ntawm chromosome ntawm heredityNws tau pom tias cov noob tau txuas rau hauv cov kab ke ntawm chromosomes thiab muaj lub luag haujlwm rau kev txheeb xyuas tus kheej, keeb kwm keeb kwm.
Leej twg hu ua Drosophila melanogaster?
Ib qho Taw Qhia rau Drosophila melanogaster
Thomas Hunt Morgan yog tus kws tshaj lij biologist kawm Drosophila thaum ntxov xyoo 1900. Nws yog thawj tus uas pom kev sib deev-kev sib txuas thiab kev sib txuas ntawm caj ces, uas tso cov yoov me me nyob rau hauv pem hauv ntej ntawm kev tshawb nrhiav caj ces.
Puas yog cov yoov yoov tsis zoo?
biologists tau xav ntev ntev vim li cas kev sib deev tshwm sim, raws li kev tsim tawm asexually zoo li ua rau kev nkag siab zoo dua. Tam sim no, ib qho kev sim nrog txiv hmab txiv ntoo yoov tshaj tawm ib qho txiaj ntsig ntawm kev sib deev: Nws ua rau muaj kev hloov pauv tau zoo. … Los ntawm kev tsim cov chromosomes hluavtaws, lawv tsim cov yoov uas yug me nyuam.
Pom zoo:
Leej twg yog thawj tus neeg nrhiav tau chocolate?
Kev tsim thawj cov qhob noom xim kasfes niaj hnub no tau lees paub rau Joseph Fry, uas xyoo 1847 tau pom tias nws tuaj yeem ua cov qhob noom xim kasfes los ntawm kev ntxiv cov kua nplaum nplaum nplaum rov qab rau hauv Dutch cocoa.. Los ntawm 1868, ib lub tuam txhab me me hu ua Cadbury yog lub thawv ntim khoom qab zib hauv tebchaws Askiv .
Leej twg nrhiav tau cramer txoj cai?
Nws muaj npe tom qab Gabriel Cramer (1704–1752), uas tau tshaj tawm txoj cai rau tus lej tsis paub txog xyoo 1750, txawm hais tias Colin Maclaurin kuj tau tshaj tawm cov xwm txheej tshwj xeeb ntawm txoj cai. xyoo 1748 (thiab tejzaum nws paub txog thaum ntxov li 1729) .
Leej twg nrhiav tau aberration ntawm lub hnub qub?
Qhov kev hloov pauv tiag tiag ntawm lub hnub qub vim yog aberra tion tsis tuaj yeem pom ncaj qha, tab sis cov kev hloov pauv hauv qhov kev hloov pauv no tuaj yeem ua tau. Nws yog los ntawm kev ua raws li kev hloov pauv ntawm ntau lub hnub qub uas tus kws tshawb fawb Askiv James Bradleynrhiav pom stellar aberration thaum ntxov xyoo pua 18th .
Leej twg nrhiav tau paricutin volcano?
Hom Volcano: A scoria (los yog cinder) lub khob hliav qab. Nrhiav tau: Tus Neeg Ua Haujlwm Dionisio Pulido pom nws tawm ntawm nws cov pob kws thaum Lub Ob Hlis 20, 1943, nyob ib ncig ntawm 4 teev tsaus ntuj. Qhov chaw: Nyob ze lub nroog puas tsuaj ntawm Paricutin hauv lub xeev Michoacán, Mexico .
Leej twg nrhiav tau conus toxin?
Olivera BM, tus pioneer hauv kev kawm txog conotoxins [52]. Txoj kev tshawb no yog thawj zaug uas qhia tau hais tias conotoxins tau qhia ntau heev nyob rau hauv lub venom duct ntawm Conus hom (C. bullatus), thiab piav qhia txog thawj bioinformatics pipeline rau high-throughput discovery thiab characterization ntawm conotoxins .
