An gano hanyoyi da yawa tare da sawun dinosaur kusan 200 a wani katafaren dutse a Oxfordshire. Waɗannan kwanakin zuwa Tsakanin Jurassic Period (kusan shekaru miliyan 166 da suka gabata). Akwai hanyoyi guda biyar da aka yi hudu daga cikinsu da herbivore...
Aikin kawar da cutar thylacine da aka sanar a cikin 2022 ya sami sabbin ci gaba a cikin tsararrun mafi kyawun tsoffin kwayoyin halitta, gyaran genome na marsupial da sabbin fasahohin taimakawa haihuwa (ARTs) don marsupials. Wadannan ci gaban ba kawai za su goyi bayan tashin Tasmanian ba ...
An ba da lambar yabo ta Nobel ta 2024 a fannin ilimin halittar jiki ko magani tare ga Victor Ambros da Gary Ruvkun "saboda gano microRNA da rawar da take takawa a cikin ƙa'idar rubutun bayanan bayan bayanan". MicroRNAs (miRNAs) na cikin dangi ne na ƙanana, marasa coding, ...
An gano burbushin tsohuwar chromosomes tare da ingantattun sifofi mai girman nau'i uku na ɓatattun mammoth na woolly daga tsohuwar samfurin 52,000 da aka adana a cikin Siberian permafrost. Wannan shine shari'ar farko na tsohuwar chromosome da aka kiyaye gaba ɗaya. Nazarin burbushin chromosomes na iya...
Tmesipteris oblanceolata , wani nau'i na cokali mai yatsa na New Caledonia a kudu maso yammacin Pacific an gano cewa yana da nau'i-nau'i na 160.45 Gigabase (Gbp) / IC (1C = abun ciki na DNA na nukiliya a cikin ƙwayar gametic). Wannan game da...
Jarumar Jamus (Blattella germanica) ita ce kwaro na kyankyasai da aka fi sani a duniya da ake samu a gidajen mutane a duk duniya. Waɗannan kwari suna da alaƙa da gidajen ɗan adam kuma ba a samun su a wuraren zama na halitta a waje. Rikodin farko na wannan nau'in a Turai ...
Interspecies Blastocyst Complementation (IBC) (watau haɓakawa ta microinjecting stem cell na sauran nau'ikan cikin embryos na matakin blastocyst) cikin nasarar haifar da nama na bera na gaba a cikin beraye waɗanda ke da tsari da aiki. A wani bincike mai alaka da shi, an kuma gano cewa...
Biosynthesis na furotin da acid nucleic na buƙatar nitrogen duk da haka nitrogen na yanayi baya samuwa ga eukaryotes don haɓakar kwayoyin halitta. Kadan ne kawai prokaryotes (kamar cyanobacteria, clostridia, archaea da sauransu) ke da ikon gyara nitrogen na kwayoyin halitta da yawa a cikin ...
An gano wani sabon nau'in slug na teku, mai suna Pleurobranchaea britannica, a cikin ruwa da ke gabar tekun kudu maso yammacin Ingila. Wannan shine misali na farko da aka rubuta na slug na teku daga halittar Pleurobranchaea a cikin ruwan Burtaniya. Yana da...
Kwanciyar kwayoyin cuta dabara ce ta rayuwa don mayar da martani ga tsananin damuwa ga maganin rigakafi da majiyyaci ya dauka don magani. Kwayoyin da ke kwance suna jure wa maganin rigakafi kuma ana kashe su a hankali kuma suna tsira wani lokaci. Ana kiran wannan 'haƙuri na rigakafi'...
Ganyayyaki na brine sun samo asali ne don bayyana famfunan sodium waɗanda ke musayar 2 Na+ don 1 K+ (maimakon 3Na+ na canonical don 2 K+). Wannan karbuwa yana taimakawa Artemia cire yawan adadin sodium daidai gwargwado zuwa waje wanda ke ba da damar ...
Kalmar 'robot' tana haifar da hotuna na na'ura mai kama da mutum (humanoid) da aka ƙera kuma aka tsara don yin wasu ayyuka kai tsaye gare mu. Koyaya, mutummutumi (ko bots) na iya zama kowane nau'i ko girma kuma ana iya yin su da kowane abu ...
Kākāpō parrot (wanda kuma aka fi sani da "aku na mujiya" saboda yanayin fuskar sa kamar na mujiya) wani nau'in aku ne mai hatsarin gaske daga ƙasar New Zealand. Dabba ce da ba a saba gani ba domin ita ce tsuntsaye mafi dadewa a duniya (maiyuwa ...
Parthenogenesis shine haifuwa na jima'i wanda aka ba da gudummawar kwayoyin halitta daga namiji. Qwai suna girma zuwa zuriya da kansu ba tare da sun hadu da maniyyi ba. Ana ganin wannan a yanayi a wasu nau'ikan tsirrai, kwari, dabbobi masu rarrafe da sauransu....
Wasu kwayoyin halitta suna da ikon dakatar da tsarin rayuwa lokacin da suke ƙarƙashin mummunan yanayin muhalli. Da ake kira cryptobiosis ko dakatar da rayarwa, kayan aikin rayuwa ne. Kwayoyin da ke ƙarƙashin raye-rayen da aka dakatar suna farfaɗo lokacin da yanayin muhalli ya zama mai daɗi. A cikin 2018, nematodes masu dacewa daga ƙarshen ...
“Tsarin CRISPR-Cas” a cikin ƙwayoyin cuta da ƙwayoyin cuta suna ganowa da lalata jerin ƙwayoyin cuta masu mamayewa. Yana da tsarin rigakafi na kwayan cuta da na archaeal don kariya daga cututtukan cututtuka. A cikin 2012, an gane tsarin CRISPR-Cas azaman kayan aikin gyara kwayoyin halitta. Tun daga wannan lokacin, manyan abubuwan ...
Manyan sharks megatooth da suka lalace sun kasance a saman gidan yanar gizon abinci na ruwa sau ɗaya. Ba a fahimci juyin halittarsu zuwa manyan girma dabam da bacewar su ba. Wani bincike na baya-bayan nan ya yi nazari kan isotopes daga hakoran burbushin halittu kuma ya gano cewa wadannan...
Rukunin al'ada na rayuwa ya zama prokaryotes da eukaryotes a cikin 1977 lokacin da tsarin tsarin rRNA ya bayyana cewa archaea (wanda ake kira 'archaebacteria') suna da alaƙa da ƙwayoyin cuta kamar yadda ƙwayoyin cuta ke da eukaryotes. ..
Ba kamar na al'ada na mRNA na al'ada ba waɗanda ke ɓoye kawai don antigens masu niyya, mRNAs masu haɓaka kai (saRNAs) suna ƙididdige su don sunadaran da ba na tsari ba da kuma haɓakawa wanda hakan ke sa saRNAs kwafi waɗanda ke iya yin rubutu a cikin vivo a cikin sel masu masaukin baki. Sakamakon farko ya nuna cewa...
Masana kimiyya sun yi kwafin tsarin halitta na ci gaban mahaifa na mammali a cikin dakin gwaje-gwaje har zuwa ci gaban kwakwalwa da zuciya. Ta hanyar amfani da sel mai tushe, masu bincike sun ƙirƙiri embryos na linzamin kwamfuta na roba a waje da mahaifa wanda ya dawo da tsarin ci gaba na dabi'a.
Ligas na RNA suna taka muhimmiyar rawa wajen gyaran RNA, ta haka ne ke kiyaye amincin RNA. Duk wani lahani a cikin gyaran RNA a cikin mutane da alama yana da alaƙa da cututtuka kamar neurodegeneration da kansa. Gano wani sabon furotin ɗan adam (C12orf29 akan chromosome ...
Sauya yanayi koyaushe yana haifar da bacewar dabbobin da ba su dace da rayuwa a cikin yanayin da aka canza ba kuma yana ba da fifiko ga rayuwa mafi dacewa wanda ya ƙare a juyin halittar sabon nau'in. Duk da haka, thylacine (wanda aka fi sani da Tiger Tasmanian ko Tasmanian wolf), ...
Thiomargarita magnifica, manyan ƙwayoyin cuta sun samo asali don samun rikitarwa, sun zama ƙwayoyin eukaryotic. Wannan da alama yana ƙalubalantar ra'ayin gargajiya na prokaryote. Ya kasance a cikin 2009 lokacin da masana kimiyya suka sami wani baƙon gamuwa tare da bambance-bambancen microbial da ke wanzuwa a cikin ...
An fitar da sabon, cikakkun bayanai na cikakken tsarin aiki ga duk tsuntsaye, da ake kira AVONET, mai dauke da ma'auni na tsuntsaye sama da 90,000 bisa ga kokarin kasa da kasa. Wannan zai zama kyakkyawan hanya don koyarwa da bincike ...
Wasu ƙananan ƙwayoyin cuta a cikin zurfin teku suna samar da iskar oxygen ta hanyar da ba a sani ba. Domin samar da makamashi, nau'in archaea 'Nitrosopumilus maritimus' yana fitar da ammonia, a gaban iskar oxygen, zuwa nitrate. Amma lokacin da masu bincike suka rufe ƙananan ƙwayoyin cuta a cikin kwantena masu hana iska, ba tare da ...