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Lub luag haujlwm ntawm engrailed 1 yog dab tsi?

Cov txheej txheem:

Lub luag haujlwm ntawm engrailed 1 yog dab tsi?
Lub luag haujlwm ntawm engrailed 1 yog dab tsi?

Video: Lub luag haujlwm ntawm engrailed 1 yog dab tsi?

Video: Lub luag haujlwm ntawm engrailed 1 yog dab tsi?
Video: Koj yog Hmoov dab tsi? Leej twg Hmoov thiaj haum Koj 2024, Tej zaum
Anonim

Engrailed (En) 1 yog homeobox noob uas pab tswj kev loj hlob hauv dorsal midbrain thiab anterior hindbrain (cerebellum thiab colliculi) ntawm tib neeg. Nws kuj tseem yog qhov tseem ceeb hauv kev tswj hwm kev tsim cov qauv dorso-ventral hauv kev tsim cov ceg tawv.

engrailed protein ua dab tsi?

Kev ua haujlwm nyob rau hauv txhua qhov anterior compartment txhawm rau txhawm rau cov proteins uas ua nyob rau hauv lub posterior compartments, xws li Wingless, Decapentaplegic, Patched, Deformed thiab Cubitus interrruptus. EN kuj tseem muaj qee ntu tshwj xeeb cuam tshuam, xws li txo qis Ultrabithorax hauv parasegment rau.

Cov noob caj noob ces ua li cas?

Cov noob engrailed yog xav tias yog 'selector' gene uas tswj kev qhia ntawm lwm cov genes kom hais txog 'tom qab tus kheej' ntawm pawg hlwb uas muaj feem cuam tshuam los ntawm kab… Nws muaj lub luag haujlwm lig hauv kev ua qauv ntawm cov npoo npoo, uas suav nrog cov hlwb hauv qhov chaw sab hauv.

Ib engrailed a gap gene?

Seg polarity noob yog qhia nyob rau hauv lub embryo tom qab kev qhia ntawm cov noob caj noob ces thiab khub-txoj cai genes. Cov feem ntau hais piv txwv ntawm cov noob no yog engrailed thiab gooseberry nyob rau hauv Drosophila melanogaster.

Qhov twg yog engrailed?

Nyob hauv ventral ganglion engrailed zoo nkaus li tau qhia los ntawm ib pawg ntawm cov hlwb, feem ntau hauv cov cheeb tsam tom qab ntawm txhua ntu. Nyob rau hauv tis discs los ntawm cov tsiaj uas yog homozygous rau lub en1 kev hloov, tus qauv ntawm kev qhia ntawm cov noob yog hloov, as opposed to tsuas yog txo uniformly nyob rau hauv lub posterior hlwb.

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