Cov ntaub ntawv ntau npaum li cas hauv DNA?
Cov ntaub ntawv ntau npaum li cas hauv DNA?

Video: Cov ntaub ntawv ntau npaum li cas hauv DNA?

Video: Cov ntaub ntawv ntau npaum li cas hauv DNA?
Video: Qhia cov poj niam thaum muaj me nyuam hauv plab tsim nyog ua li ca thiaj zoo 2024, Kaum ib hlis
Anonim

Ib byte ib leeg (los yog 8 ntsis) tuaj yeem sawv cev 4 DNA puag khub. Yuav kom sawv cev rau tag nrho diploid tib neeg genome nyob rau hauv cov nqe lus ntawm bytes, peb yuav ua tau cov nram qab no xam: 6 × 10 ^ 9 puag khub / diploid genome x 1 byte / 4 puag khub = 1.5 × 10 ^ 9 bytes los yog 1.5 Gigabytes, txog 2 CDs tsim nyog qhov chaw!

Ib yam li ntawd, ntau npaum li cas cov ntaub ntawv nyob rau hauv ib txoj kab ntawm DNA?

Hauv tib neeg, qhov ntev tshaj plaws DNA strand yog chromosome 1, thiab qhov ntawd yog 247 lab lub hauv paus ntev. Ntawm qhov luv luv, luv tshaj DNA strand yog ib tug dimer (ob lub hauv paus). Yog li, muaj ntau tshaj qhov ua tau cov ntaub ntawv ntawm 2 ntsis rau hauv paus.

Tsis tas li ntawd, cov ntaub ntawv ntau npaum li cas hauv cov phev? A phev muaj 37.5 MB ntawm DNA cov ntaub ntawv. Ib qho ejaculation hloov 15, 875 GB ntawm cov ntaub ntawv, sib npaug rau 7,500 lub laptops.

Tsis tas li ntawd, cov ntaub ntawv dab tsi khaws cia hauv DNA?

Cov cov ntaub ntawv hauv DNA yog khaws cia Raws li cov cai tsim los ntawm plaub lub hauv paus tshuaj: adenine (A), guanine (G), cytosine (C), thiab thymine (T). Tib neeg DNA muaj li ntawm 3 billion lub hauv paus, thiab ntau dua 99 feem pua ntawm cov hauv paus yog tib yam hauv txhua tus neeg.

Muaj pes tsawg grams ntawm DNA nyob hauv tib neeg lub cev?

DNA cov ntsiab lus ntawm ib txwm tib neeg cell yog hais txog 6 x 10^-12 grams (https://www.biotech.wisc.edu/outr) Tib neeg lub cev muaj li ntawm 1 x 10^13 hlwb, tab sis tus lej ntawd kuj sib txawv heev (https://en.wikipedia.org/wiki/Hum) Muab ob yields 60 grams.

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