Video: Dab tsi yog karyotype sau piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov no sau ntawv suav nrog tag nrho cov chromosomes, kev sib deev chromosomes, thiab ib qho ntxiv lossis ploj lawm autosomal chromosomes. Rau piv txwv , 47, XY, +18 qhia tias tus neeg mob muaj 47 chromosomes, yog txiv neej, thiab muaj ib qho ntxiv autosomal chromosome 18.
Tsis tas li ntawd, dab tsi yog karyotype notation?
A karyotype yog tus sawv cev ntawm chromosomes ntawm txhua hom cell. Txiav txim siab txog kev sib deev chromosomes, seb lawv yog "XX" lossis "XY." Yog hais tias lawv yog "XX," cov ntsiab lus yog poj niam; "XY," qhov kev kawm yog txiv neej. Sau qhov kev sib xyaw ua ke ntawm ib sab ntawm tus lej tom qab tus lej cim. Nyob rau hauv ib tug poj niam ib txwm, qhov no yuav zoo li no "46, XX."
Qhov thib ob, dab tsi karyotype yog Trisomy 21? Trisomy 21 (47, XYI, + 21 ) yog tshwm sim los ntawm qhov tshwm sim meiotic nondisjunction. Thaum ua ke nrog gamete ib txwm los ntawm lwm tus niam txiv, tus menyuam tam sim no muaj 47 chromosomes, nrog peb daim ntawv theej ntawm chromosome. 21 . Cov trisomy 21 karyotype Daim duab qhia tau hais tias chromosomal kev npaj, nrog rau qhov tseem ceeb ntxiv chromosome 21.
Tsuas yog li ntawd, qhov piv txwv karyotype yog dab tsi?
kar·y·o·type. Siv karyotype hauv ib kab lus. npe. Karyotype txhais tau tias yog qhov pom dav dav ntawm chromosomes. Ib piv txwv ntawm karyotype yog qhov loj, tus naj npawb thiab cov duab ntawm chromosomes hauv tib neeg lub cev.
Edward's syndrome yog dab tsi?
Edwards Syndrome , tseem hu ua trisomy 18, yog ib hom kab mob tsis meej pem tshwm sim los ntawm muaj ib daim ntawv thib peb ntawm tag nrho lossis ib feem ntawm chromosome 18. Ntau qhov chaw ntawm lub cev raug cuam tshuam. Cov menyuam mos feem ntau yug me me thiab muaj lub plawv tsis xws luag.
Pom zoo:
Yam ua piv txwv piv txwv li cas?
Ib khub xaj yog ib khub ntawm tus lej hauv ib qho kev txiav txim. Piv txwv li, (1, 2) thiab (- 4, 12) raug txiav ua khub. Qhov kev txiav txim ntawm ob tus lej tseem ceeb: (1, 2) tsis sib npaug rau (2, 1) -- (1, 2) ≠ (2, 1)
Dab tsi yog qhov sib piv thiab piv txwv?
Inverse proportion. Inverse proportions tshwm sim thaum ib tus nqi nce thiab qhov txo qis. Piv txwv li, ntau tus neeg ua haujlwm ntawm txoj haujlwm yuav txo lub sijhawm los ua kom tiav cov haujlwm. Lawv yog inversely proportional
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb