Dab tsi yog nucleic acids siv rau hauv cov tsiaj muaj sia?
Dab tsi yog nucleic acids siv rau hauv cov tsiaj muaj sia?

Video: Dab tsi yog nucleic acids siv rau hauv cov tsiaj muaj sia?

Video: Dab tsi yog nucleic acids siv rau hauv cov tsiaj muaj sia?
Video: Plob hau hle ntau ntau yog vim li cas?/Cause of alopecia(Hair loss)/ສາເຫດຂອງຜົມຫຼົ່ນ 2024, Kaum ib hlis
Anonim

Nucleic acids yog qhov tseem ceeb tshaj plaws macromolecules rau lub neej txuas ntxiv. Lawv nqa daim ntawv qhia txog caj ces ntawm lub xov tooj ntawm tes thiab nqa cov lus qhia rau kev ua haujlwm ntawm tes. Ob hom nucleic acids yog deoxyribonucleic acid ( DNA thiab ribonucleic acid ( RNA ).

Tsuas yog li ntawd, 3 lub luag haujlwm tseem ceeb ntawm nucleic acids yog dab tsi?

Cov ntaub ntawv caj ces Lub luag haujlwm tseem ceeb ntawm DNA yog nqa cov cai rau kev ua cov proteins . Ib tug noob yog ib tug stretch ntawm DNA uas yuav nyeem tau los ntawm cov proteins hu ua ribosomes, thiab tau theej rau hauv ib hom nucleic acid hu ua messenger RNA (mRNA).

Ib sab saum toj no, lub luag haujlwm tseem ceeb ntawm nucleic acids hauv cov nroj tsuag yog dab tsi? Nucleic acids yog cov molecules loj uas nqa tons ntawm cov ntsiab lus me me: tag nrho cov ntaub ntawv caj ces. Nucleic acids muaj nyob rau hauv txhua yam muaj sia nyob - nroj tsuag , tsiaj txhu, kab mob, kab mob, fungi - uas siv thiab hloov lub zog.

Yog li ntawd, ob lub luag haujlwm tseem ceeb ntawm nucleic acids yog dab tsi?

Nucleic acids yog cov lub ntsiab cov ntaub ntawv nqa cov molecules ntawm tes, thiab, los ntawm kev coj cov txheej txheem ntawm cov protein synthesis, lawv txiav txim siab cov yam ntxwv ntawm txhua yam muaj sia nyob. Cov ob lub ntsiab chav kawm ntawm nucleic acids yog deoxyribonucleic kua qaub (DNA) thiab ribonucleic kua qaub (RNA).

Dab tsi yog nucleic acids ua los ntawm?

Tag nrho nucleic acids yog ua los ntawm tib lub tsev blocks (monomers). Chemists hu cov monomers "nucleotides." Cov tsib daim yog uracil, cytosine, thymine, adenine, thiab guanine. Txawm hais tias koj nyob hauv chav kawm txuj ci dab tsi, koj yuav hnov txog ATCG thaum saib DNA. Uracil tsuas yog pom hauv RNA.

Pom zoo: