2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv mob qog noj ntshav, cov qe ntshav liab yog zoo li cov kab mob los yog lub hli hli. Cov hlwb txhav, nplaum nplaum no tuaj yeem daig hauv cov hlab ntsha me, uas tuaj yeem ua rau qeeb lossis thaiv cov ntshav ntws thiab oxygen mus rau qhov chaw ntawm lub cev.
Yuav ua li cas ua rau mob mob hauv cov kab mob ntshav qab zib?
Cells nrog mob cell hemoglobin yog tawv thiab nplaum. Thaum lawv plam lawv cov pa, lawv tsim los ua ib tug kab mob los yog crescent, zoo li tsab ntawv C. Cov hlwb no los ua ke thiab txav tsis tau yooj yim los ntawm cov hlab ntsha.
Dab tsi ua rau tus yam ntxwv mob lub cev zoo li qub?
Sickle cell anemia yog ib yam kab mob uas muaj feem cuam tshuam rau cov qe ntshav liab nrog qhov txawv txav ntawm hemoglobin, cov protein uas nqa oxygen thoob plaws hauv lub cev. Cov hemoglobin hloov pauv yog lub npe hu ua hemoglobin S, lossis mob hemoglobin, vim tias nws ua rau cov qe ntshav liab ib txwm ua rau lub cev muaj mob.
hom kev hloov pauv dab tsi ua rau cov hlwb ua rau mob qog noj ntshav?
kab mob qog nqaij hlav yog tshwm sim los ntawm kev hloov pauv hauv beta-globin (HBB) gene uas ua rau tsim qhov txawv txav ntawm cov subunit ntawm hemoglobin - cov protein ua lub luag haujlwm rau nqa oxygen hauv cov ntshav liab. Qhov hloov pauv ntawm cov protein no hu ua hemoglobin S.
4 hom kev hloov pauv yog dab tsi?
Summary
- Germline mutations tshwm sim hauv gametes. Somatic mutations tshwm sim nyob rau hauv lwm lub cev hlwb.
- Chromosomal alterations yog mutations uas hloov chromosome qauv.
- Point mutations hloov ib zaug nucleotide.
- Frameshift kev hloov pauv yog ntxiv lossis tshem tawm ntawm nucleotides uas ua rau muaj kev hloov pauv hauv kev nyeem ntawv.
Pom zoo:
Dab tsi ntawm cov hauv qab no yog tus yam ntxwv ntawm ntau tus kab mob?
Tus kab mob ntau hom kis tau rau lub khoos phis tawj ntau zaus thiab lub sijhawm sib txawv. Txhawm rau kom nws tshem tawm, tag nrho cov kab mob yuav tsum raug tshem tawm ntawm lub system. Tus kab mob multipartite tseem hu ua hybrid virus. Tus kab mob sib kis yog dab tsi?
Nyob rau hauv cov qog nqaij hlav ntawm lub plab pepsin yog tsim los ntawm?
Cov qog no yog cov tubules nqaim uas muaj peb hom cell loj: zymogenic, parietal, thiab mucous caj dab. Nyob rau hauv lub hauv paus ntawm lub caj pas yog cov zymogenic (chief) hlwb, uas xav tias tsim cov enzymes pepsin thiab rennin. Cov qog dab tsi tsim pepsin?
Puas mob qog noj ntshav axillary qog nqaij hlav mob?
Yog tias mob qog noj ntshav tawm sab nraud lub mis, nws tuaj yeem cuam tshuam rau cov qog ntshav, thiab koj tuaj yeem pom ib pob me me hauv qab koj txhais caj npab. Cov qog nqaij hlav loj no tuaj yeem ua rau tsis xis nyob. Yog tias koj pom muaj qhov txawv txav ntawm lossis ib puag ncig koj ob txhais caj npab lossis hauv siab, nrhiav kev kho mob tam sim.
Tus kab mob qog nqaij hlav zoo li cas?
Tus mumps zoo li cas? Qhov kev kuaj lub cev tshwj xeeb pom pom hauv cov neeg mob qog nqaij hlav yog o thiab rhiab ntawm ib lossis ob lub qog parotid ntawm ob sab ntawm lub ntsej muag. Cov caj pas parotid yog imbedded rau hauv lub puab tsaig nyob rau hauv pem hauv ntej ntawm pob ntseg uas muaj ib tug loj set ntawm sideburns.
Nyob rau hauv lamarckian qub txeeg qub teg ntawm cov yam ntxwv kis tau kab mob?
Raws li Lamarck, cov kab mob hloov pauv lawv tus cwj pwm hauv kev teb rau kev hloov pauv ib puag ncig. Lawv hloov tus cwj pwm, tig, hloov kho lawv lub cev, thiab lawv cov xeeb ntxwv tau txais cov "kho" cov qauv. Lamarck txoj kev xav ntawm qhov qub txeeg qub teg ntawm cov yam ntxwv tau txais yog dab tsi?
