Puas pyrimidines tsim covalent bonds nrog purines?
Puas pyrimidines tsim covalent bonds nrog purines?

Video: Puas pyrimidines tsim covalent bonds nrog purines?

Video: Puas pyrimidines tsim covalent bonds nrog purines?
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Pyrimidines tsim Covalent Bonds nrog Purines . Adenine Thiab Guanine Yog Pyrimidines 2.)

Ntawm no, hom ntawv cog lus twg ua purines thiab pyrimidines tsim?

Purines ib txwm daim ntawv cog lus nrog pyrimidines ua ntawm hydrogen daim ntawv cog lus ua raws li txoj cai Chargaff hauv dsDNA, tshwj xeeb tshaj yog txhua tus daim ntawv cog lus ua raws li Watson-Crick hauv paus kev sib koom ua ke. Yog li ntawd, adenine tshwj xeeb daim ntawv cog lus rau thymine tsim ob hydrogen daim ntawv cog lus , yog guanine daim ntawv peb hydrogen daim ntawv cog lus Nrog Cytosine.

Tsis tas li ntawd, puas purines ib txwm ua ke nrog pyrimidines? Vim purines ib txwm khi nrog pyrimidines ua - lub npe hu ua complementary ua khub - qhov ratio ntawm ob yuav ib txwm yuav nyob tas li hauv DNA molecule. Muaj ob hom tseem ceeb ntawm tshuaj purine : Adenine thiab Guanine. Ob qho no tshwm sim hauv DNA thiab RNA.

Qhov thib ob, vim li cas pyrimidine tsuas yog khi nrog purine?

Cov qauv molecular ntawm ob qho tib si pyrimidines ua thiab cov purines tso cai rau lawv nkaus xwb muaj peev xwm daim ntawv cog lus nrog ib leeg thiab tsis nyob hauv pab pawg. Thymine ( pyrimidine thiab adenine ( tshuaj purine ) ob leeg muaj ob lub atom uas tuaj yeem muab H daim ntawv cog lus los yog txais nws.

Puas yog uracil yog purine?

Lwm hom hu ua a tshuaj purine . Uracil , lub hauv paus nitrogenous pom hauv RNA, yog pyrimidine. Ob lwm pyrimidines yog cytosine thiab thymine. Thymine tsuas pom muaj nyob hauv DNA.

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