Video: Muaj pes tsawg DNA molecules nyob rau hauv daim siab hlwb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib tug tib neeg lub siab cell muaj ob pawg ntawm 23 chromosomes, txhua pawg yog kwv yees sib npaug ntawm cov ntaub ntawv cov ntsiab lus. Tag nrho qhov loj ntawm DNA muaj nyob hauv cov no 46 DNA loj molecules yog 4 x 1012 daltons.
Tsuas yog li ntawd, muaj pes tsawg DNA molecules nyob hauv ib lub cell?
Teb thiab piav qhia: Muaj 46 DNA molecules nyob rau hauv tib neeg somatic hlwb . DNA molecules ua rau ib qho chromosome, muaj 23 chromosome khub hauv ib qho somatic cell , uas txhua tus muaj 2 DNA molecules.
Tsis tas li, muaj pes tsawg DNA molecules nyob hauv chromatid? ob
Ib sab saum toj no, pes tsawg khub ntawm chromosomes nyob rau hauv daim siab hlwb?
Hauv tib neeg cell , muaj 23 khub ntawm chromosomes . Tus naj npawb tseem nyob tib yam tsis hais txog qhov chaw ntawm lub cell . Yog li ntawd, poj niam daim siab cell tseem yuav muaj 23 khub ntawm chromosomes uas 22 khub yog autosomes thiab ib khub ntawm kev sib deev chromosome i.e. XX.
Dab tsi yog kev sib raug zoo ntawm cov proteins DNA thiab cov hlwb?
(1) Cells muaj DNA uas tswj kev tsim khoom ntawm cov proteins . (2) DNA yog tsim los ntawm cov proteins uas nqa cov ntaub ntawv coded rau yuav ua li cas hlwb muaj nuj nqi. (3) Cov protein yog siv los tsim hlwb uas txuas cov amino acids ua ke rau hauv DNA . (4) Cells yog txuas ua ke los ntawm cov proteins los ua ntau hom DNA molecules.
Pom zoo:
Muaj pes tsawg molecules nyob rau hauv 9 moles ntawm h2s?
9 moles ntawm H2S = 9 (6.022 * 10²³ molecules) = 5.4198 * 1024 molecules. Teb: muaj 5.4198 * 1024 molecules hauv 9.00 moles ntawm H2S
Muaj pes tsawg lub hlwb muaj nyob rau thaum kawg ntawm mitosis?
Thaum kawg ntawm mitosis, ob tug ntxhais cell yuav yog cov ntawv luam ntawm tus thawj cell. Txhua tus ntxhais cell yuav muaj 30 chromosomes. Thaum kawg ntawm meiosis II, txhua lub xov tooj (piv txwv li, gamete) yuav muaj ib nrab ntawm cov chromosomes qub, uas yog, 15 chromosomes
Muaj pes tsawg chromosome khub nees muaj nyob rau hauv lawv cov somatic hlwb?
Cov dev muaj 39 khub ntawm chromosomes hauv lawv cov hlwb somatic. 3. Nees muaj 16 chromosomes hauv lawv cov hlwb haploid
Muaj pes tsawg qhov kev zam rau tus qauv electron configurations muaj nyob rau hauv D block?
ob Ntawm no, cov ntsiab lus twg yog kev zam rau Aufbau txoj cai? Piv txwv li, ruthenium, rhodium, nyiaj thiab platinum yog tag nrho kev zam rau Aufbau txoj cai vim yog sau los yog ib nrab puv subshells. Ib sab saum toj no, yog vim li cas electron configuration rau tooj liab 1s22s22p63s23p63d104s1 es tsis txhob 1s22s22p63s23p63d94s2?
Muaj pes tsawg txoj hauv kev genetic recombination muaj nyob rau hauv cov kab mob?
Muaj peb txoj hauv kev tseem ceeb uas genetic recombination tshwm sim hauv cov kab mob, thawj qhov hu ua transformation. Qhov no yog thaum ib daim DNA pub dawb los ntawm tus neeg tau txais kab mob