6-4 photoproduct yog dab tsi?

Cov txheej txheem:

6-4 photoproduct yog dab tsi?
6-4 photoproduct yog dab tsi?
Anonim

Tus (6-4) photoproduct yog tus cwj pwm los ntawm tsim ntawm covalent daim ntawv cog lus ntawm ob lub hauv paus pyrimidine uas nyob ib sab: C6 ntawm 5'-base thiab C4 ntawm 3' -base (Daim duab 1d).

Photoproduct yog dab tsi?

: khoom ntawm cov tshuaj tiv thaiv photochemical.

Dimer ntawm DNA yog dab tsi?

Pyrimidine dimers yog molecular lesions tsim los ntawm thymine los yog cytosine bases hauv DNA ntawm photochemical tshua. Ultraviolet lub teeb (UV) induces tsim ntawm covalent linkages ntawm sib law liag bases nyob rau hauv lub nucleotide saw nyob rau hauv ib ncig ntawm lawv carbon-carbon ob daim ntawv cog lus.

Pob tib neeg muaj photolyase?

Lub photolyase tshuab tsis ua haujlwm hauv tib neeg lawm thiab lwm yam tsiaj tsiaj uas siv cov tshuaj nucleotide tsis zoo, txawm hais tias lawv khaws ntau cryptochromes. Photolyases yog flavoproteins thiab muaj ob lub teeb-txiav cofactors.

Dimer tsim twg ntau tshaj?

Cov khoom lag luam uas muaj ntau tshaj plaws tsim hauv DNA los ntawm UV irradiation yog cyclobutane pyrimidine dimer (CPD).

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
Nyeem ntxiv

Pob splanchnic paj hlwb synapse?

Cov hlab ntsha loj dua splanchnic taug kev los ntawm diaphragm thiab nkag mus rau hauv plab kab noj hniav. Nws fibers synapse ntawm celiac ganglia. Cov hlab ntsha txhawb nqa rau lub celiac plexus, lub network ntawm cov hlab ntsha nyob rau thaj tsam ntawm qhov chaw ntawm lub cev celiac ceg ntawm lub plab aorta.

Yuav coreopsis puas tawg rau lub caij ntuj sov?
Nyeem ntxiv

Yuav coreopsis puas tawg rau lub caij ntuj sov?

yog qhov kev xaiv zoo meej. Nrog ntau tshaj 80 hom coreopsis, muaj ntau yam kom haum txhua lub vaj tsim. Haiv neeg rau North America, coreopsis nroj tsuag loj hlob nyob rau hauv upright clumps thiab feature masses ntawm kaj, showy, daisy-zoo li paj thoob plaws lub caij ntuj sov.

Lub ntsiab lus ntawm kev hush up yog dab tsi?
Nyeem ntxiv

Lub ntsiab lus ntawm kev hush up yog dab tsi?

: tsi ntsiag to kuv hais rau nws kom txhob maj. slang txhais li cas? Koj hais 'Hush! ' rau ib tug thaum koj nug lossis qhia kom lawv nyob ntsiag to. Nkauj ruam ruam? "Tseem" yog lus Southern uas hais tias " shut up .