Dab tsi yog qhov kev hloov pauv ntawm lub cev?
Dab tsi yog qhov kev hloov pauv ntawm lub cev?

Video: Dab tsi yog qhov kev hloov pauv ntawm lub cev?

Video: Dab tsi yog qhov kev hloov pauv ntawm lub cev?
Video: Tus Cawm Seej Hloov Neeg Txoj Hmoo (HD) 2024, Lub Xya hli ntuj
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Sickle cell anemia yog kab mob caj ces nrog mob hnyav tsos mob , nrog rau qhov mob thiab ntshav tsis txaus. Tus kab mob no tshwm sim los ntawm kev hloov pauv ntawm cov noob uas pab ua rau hemoglobin - cov protein uas nqa cov pa oxygen hauv cov qe ntshav liab.

Nyob rau hauv tas li ntawd, dab tsi mutation ua rau sickle cell?

Sickle cell anemia yog qhov tshwm sim ntawm qhov taw tes kev hloov pauv , kev hloov pauv hauv ib qho nucleotide hauv cov noob rau hemoglobin. Qhov no kev hloov pauv ua hemoglobin hauv cov ntshav liab hlwb txhawm rau ua txhaum a kab mob zoo li thaum deoxygenated. Cov kab mob cov ntshav hlwb txhaws hauv cov hlab ntshav, txiav tawm kev ncig.

Ib yam nkaus, puas yog Sickle Cell Anemia hloov pauv? Cov kev hloov pauv ua sickle cell anemia yog ib qho nucleotide hloov (A txog T) hauv codon rau amino acid 6. Qhov kev hloov pauv hloov pauv glutamic acid codon (GAG) mus rau valine codon (GTG). Daim ntawv ntawm hemoglobin hauv cov neeg muaj sickle cell anemia yog hu ua HbS.

qhov twg yog tus kab mob ntawm tes hloov pauv?

Sickle cell kab mob yog tshwm sim los ntawm a kev hloov pauv hauv cov ntshav hemoglobin-Beta pom ntawm cov chromosome 11. Hemoglobin thauj cov pa tawm ntawm lub ntsws mus rau lwm qhov hauv lub cev. Ntshav liab hlwb Nrog ib txwm hemoglobin (hemoglobin-A) yog du thiab puag ncig thiab glide los ntawm cov hlab ntsha.

Hom kev hloov pauv dab tsi ua rau mob mob cell anemia quizlet?

Siav - cell ntshav tsis txaus yog ua los ntawm qhov txawv txav hemoglobin molecule uas hloov pauv cov ntshav liab hlwb.

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