Video: Leej twg invented forensic DNA kuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sir Alec John Jeffreys
Tsis tas li ntawd, thaum twg DNA kuaj tau tsim?
Xyoo 1986 yog thaum DNA yog thawj zaug siv hauv kev tshawb nrhiav kev ua phem los ntawm Dr. Jeffreys. 1986. Kev tshawb nrhiav siv genetic fingerprinting nyob rau hauv ib rooj plaub ntawm ob rapes thiab murders uas tau tshwm sim nyob rau hauv 1983 thiab 1986.
Kuj Paub, leej twg tsim thawj qhov chaw kuaj xyuas forensic? Rau nws txoj haujlwm pioneering hauv forensic criminology, Locard los ua lub npe hu ua "Sherlock Holmes ntawm Fabkis." Lub yim hli ntuj Vollmer , tus thawj coj ntawm Los Angeles Tub Ceev Xwm, tau tsim thawj Asmeskas tub ceev xwm ua txhaum cai hauv xyoo 1924.
Ua raws li qhov no saib, thawj rooj plaub ntawm DNA pov thawj yog dab tsi?
Xyoo 1987, Florida tus neeg ua phem ua phem Tommie Lee Andrews tau los ua tus ua ntej tus neeg hauv Teb Chaws Asmeskas yuav raug txiav txim los ntawm DNA pov thawj ; nws raug txim rau 22 xyoo tom qab tuav.
Puas muaj kev kuaj DNA hauv xyoo 1989?
Cov ntaub ntawv pov thawj muaj zog rau cov lus pom zoo no yog nrog cov ntaub ntawv tshwj xeeb uas tau sau los ntawm Tsoom Fwv Teb Chaws Saib Xyuas Kev Tshawb Fawb (FBI) txij li thaum nws tau pib ua pov thawj. Kev kuaj DNA hauv xyoo 1989.
Pom zoo:
Leej twg invented lub tsev vajvoog?
90 - 168 AD Claudius Ptolemy nthuav dav ntawm Hipparchus chords hauv ib lub voj voog
Leej twg invented txoj cai ntawm sines?
Nrog rau kev ntsuas ntawm ob sab thiab lub kaum sab xis, qhov no tuaj yeem ua rau ib lossis ob daim duab peb sab. Johannes von Muller yog tus uas nrhiav tau Txoj Cai ntawm Sines. Muller yug kuv Lub Ib Hlis 3, 1752, hauv ib lub nroog me me hauv qab Franconia (Dukedom of Coburg)
Leej twg invented exponents thiab powers?
Nicolas Chuquet siv ib daim ntawv ntawm exponential notation nyob rau hauv lub xyoo pua 15th, uas tom qab ntawd tau siv los ntawm Henricus Grammateus thiab Michael Stifel nyob rau hauv lub xyoo pua 16th. Lo lus 'exponent' tau coined nyob rau hauv 1544 los ntawm Michael Stifel
Leej twg invented av qeeg tswb?
Zhang Heng
Leej twg yog leej niam leej txiv pab txhawb cytoplasmic qub txeeg qub teg?
Nyob rau hauv cov ntaub ntawv ntawm cytoplasmic qub txeeg qub tes, cov teebmeem ntawm niam txiv. Qhov no feem ntau yog vim muaj kev koom tes ntau dua ntawm cytoplasm rau zygote los ntawm niam txiv poj niam dua li txiv neej niam txiv. Feem ntau ovum txhawb ntau cytoplasm rau zygote dua cov phev