Lag ntseg nyob rau Miv Dawb - Vim Li Cas Nws tshwm sim

Cov txheej txheem:

Lag ntseg nyob rau Miv Dawb - Vim Li Cas Nws tshwm sim
Lag ntseg nyob rau Miv Dawb - Vim Li Cas Nws tshwm sim
Anonim
Lag ntseg nyob rau hauv Miv Dawb - Vim li cas Nws tshwm sim
Lag ntseg nyob rau hauv Miv Dawb - Vim li cas Nws tshwm sim

cov miv dawb no ntxim hlub heev vim lawv muaj cov plaub hau elegant thiab majestic thiab ua rau lub qhov muag zoo nkauj heev, vim nws ua rau lawv zoo nkauj heev thiab zoo nkauj heev.

Koj yuav tsum paub tias cov miv dawb yog qhov ua rau muaj kev cuam tshuam ntawm caj ces: lag ntseg. Txawm li cas los xij, tsis yog txhua tus miv dawb yog lag ntseg, txawm hais tias lawv muaj cov caj ces ntau dua, uas yog, muaj peev xwm ntau dua li lwm cov felines ntawm hom no.

Nyob rau hauv tsab xov xwm no peb muab cov yuam sij rau koj kom nkag siab yog vim li cas lag ntseg hauv cov miv dawb piav qhia rau kojvim nws tshwm sim.

Mus yug me nyuam mos liab yog vim muaj kev sib txuas caj ces, peb yuav los nthuav qhia luv luv thiab yooj yim:

  • Albino miv (qhov muag liab vim C noob los yog qhov muag xiav vim yog K noob)
  • Miv tag nrho los yog ib nrab dawb (vim S gene)
  • Txhua tus miv dawb (vim yog W gene)

peb pom nyob rau hauv pab pawg kawg, cov neeg uas dawb vim yog cov tseem ceeb gene W, feem ntau Nco ntsoov tias cov miv tshwj xeeb no tuaj yeem pom ntau yam xim, txawm li cas los xij, nws tsuas yog qhia cov xim dawb uas camouflages lub xub ntiag ntawm lwm tus.

Lag ntseg hauv miv dawb - Vim li cas nws tshwm sim - Genetic typology ntawm cov miv dawb
Lag ntseg hauv miv dawb - Vim li cas nws tshwm sim - Genetic typology ntawm cov miv dawb

Txoj kev uas qhia txog kev sib raug zoo

Miv Dawb muaj lwm qhov tshwj xeeb rau qhov tseem ceeb txij li lub tsho tiv no muaj muaj peev xwm muaj qhov muag ntawm cov xim, ib yam dab tsi ua tau hauv felines:

  • blue
  • green
  • ib ntawm txhua xim

Cov xim ntawm miv lub qhov muag yog txiav txim los ntawm qia hlwb pom nyob rau hauv txheej uas nyob ib ncig ntawm lub qhov muag hu ua tapetum lucidum. Cov muaj pes tsawg leeg ntawm cov hlwb nrog cov retina yuav txiav txim siab xim ntawm tus menyuam lub qhov muag.

Peb nkag siab kev sib raug zoo ntawm lag ntseg thiab lub qhov muag xiav vim miv nrog cov tseem ceeb gene W (uas tej zaum yuav ua rau lag ntseg) yog qhia los ntawm cov neeg uas muaj qhov muag ntawm cov xim no. Tau kawg, peb tsis tuaj yeem lees paub tias txoj cai no tau ua raws li ib txwm thiab txhua kis.

Raws li kev xav paub peb tuaj yeem taw qhia tias cov dev lag ntseg dawb uas muaj xim txawv qhov muag (xws li ntsuab thiab xiav) feem ntau ua rau lag ntseg hauv pob ntseg qhov muag xiav nyob. Chance?

Lag ntseg hauv miv dawb - Vim li cas nws tshwm sim - Cov ntsiab lus uas qhia txog kev sib raug zoo
Lag ntseg hauv miv dawb - Vim li cas nws tshwm sim - Cov ntsiab lus uas qhia txog kev sib raug zoo

Kev sib raug zoo ntawm pluab thiab tsis hnov lus

Qhia kom raug yog vim li cas qhov tshwm sim no tshwm sim nyob rau hauv cov miv dawb nrog lub qhov muag xiav, peb yuav tsum mus rau hauv kev tshawb xav ntawm caj ces. Hloov chaw peb yuav sim piav qhia qhov kev sib raug zoo no hauv txoj kev yooj yim thiab muaj zog:

Thaum tus miv nyob hauv plab, kev faib tawm ntawm tes pib tsim thiab yog thaum cov melanoblasts tshwm sim, lub luag haujlwm rau kev txiav txim siab xim ntawm lub tsho tiv no yav tom ntej miv. W gene yog qhov tseem ceeb, vim li no cov melanoblasts tsis nthuav dav, ua rau cov miv tsis muaj pigmentation.

Sib npaug hauv cell division yog thaum cov noob txiav txim siab xim ntawm ob lub qhov muag, uas yog vim tib yam tsis muaj melanoblasts, txawm hais tias tsuas yog ib qho ntawm ob lub qhov muag tas li tig xiav.

Thaum kawg peb pom pob ntseg, uas nyob rau hauv qhov tsis muaj lossis tsis txaus ntawm melanocytes raug kev lag ntseg. Yog vim li no peb thiaj li muaj feem cuam tshuam txog caj ces thiab lwm yam teeb meem kev noj qab haus huv.

Lag ntseg nyob rau hauv miv dawb - yog vim li cas nws tshwm sim - kev sib raug zoo ntawm pluab thiab tsis hnov lus
Lag ntseg nyob rau hauv miv dawb - yog vim li cas nws tshwm sim - kev sib raug zoo ntawm pluab thiab tsis hnov lus

Ntseeg lag ntseg hauv miv dawb

Raws li peb tau hais ua ntej lawm, tsis yog txhua tus miv dawb nrog lub qhov muag xiav yuav ua rau lag ntseg, peb tsis tuaj yeem tso siab rau cov yam ntxwv ntawm lub cev kom paub meej qhov no.

Ntseeg lag ntseg hauv cov miv dawb yog qhov nyuaj vim miv yog ib yam tsiaj uas yoog tau yooj yim rau lag ntseg, pab txhawb lwm yam kev xav (xws li kov) kom pom lub suab sib txawv (xws li vibrations).

Kom kom paub meej tias lag ntseg hauv miv nws yog ib qho tseem ceeb uas yuav tsum tau mus ntsib kws kho tsiaj kom ua BAER xeem (brainstem auditory evoked teb) nrog uas peb tuaj yeem paub tseeb tias peb cov miv lag ntseg lossis tsis yog nws cov plaub hau lossis qhov muag xim.

Pom zoo: