deeokseeraaibonyooklik aml

DNA ke ghumaavadaar seedheenuma sanrachana ke ek bhaag ki trivim (3-D) roop

di N A jeevit koshikaaon ke gunasootron mein paae jaane vaale tantunuma anu ko di-okseeraaibonyooklik aml ya di N A kehte hain. ismein anuvaanshik koot nibddh rahata hai. dna di N A anu ki sanrachana ghumaavadaar seedhi ki tarah hoti hai.

DNA ki ek anu chaar alag-alag raas vastuvon se bana he jine nyookliyotaaid kehte hai| har nyookliyotaaid ek naaitrojan yukt vaastu hai| in chaar nyookliyotaaidon ko adenin, gvaanin, thaaimin aur saaitosin kaha jaata hai| in nyookliyotaaidon se yukt diokseeraaibos naam ka ek shakkar bhi paaya jaata hai| in nyookliyotaaidon ko ek fausfet ki anu jodti hai| nyookliyotaaidon ke sambandh ke anusaar ek koshika ke liye avashya proteenon ki nirmaan hota hai| at: di in A har ek jeevit koshika ke liye anivaarya hai|

DNA aamtaur par kromosom ke roop mein hota hai| ek koshika mein gunasootron ke set apne jeenom ka nirmaan karta hai; maanav jeenom 46 gunasootron ki vyavastha mein DNA ke lagbhag 3 arab aadhaar jode hai| jeen mein aanuvanshik jaankaari ke prasaaran ki poorak aadhaar baaaindhana ke maadhyam se haasil ki hai| udaaharan ke liye, ek koshika ek jeen mein jaankaari ka upayog karta hai jab pratilekhan mein, DNA anukram DNA aur sahi aaraenae nyookliyotaaidon ke beech aakarshan ke maadhyam se ek poorak shaahi sena anukram mein nakal hai| aamtaur par, yeh aaraenae ki nakal to shaahi sena nyookliyotaaidon ke beech ek hi baatcheet par nirbhar karta hai jo anuvaad naamak prakriya mein ek Milan proteen anukram banaane ke liye prayog kiya jaata hai| vaikalpik bhaanumati mein ek koshika bas ek prakriya bulaaya DNA pratikruti mein apne aanuvanshik jaankaari kaupi kar sakte hain|

di N A ki roopachitr ki khoj angreji vaigyaanik James Watson aur fraansis krik ke dvaara san 1953 mein kiya gaya tha. is khoj ke liye une san 1962 mein Nobel puraskaar sammaanit kiya gaya.

inhein bhi dekhein

saaaincha:anuvaanshiki

deepak