{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

exam 2 2 - a Eulrarydtlc Replledrne it perfums al the...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: a. Eulrarydtlc Replledrne: it perfums al the fimcticns dfthe pretrarydtic repliserne but it must alsc disassemble and reassemble the pretein-DNA cprnplexee celled nucleus-pines. I. Nucledsdma: the basic unit at chromatin. mns'nfinp cf DNA wrapped areund Iislcne prete'ns. II. Preltlerathn lt‘..'-ell Nucleu- Antigen [PENN-r the eukaryeiic versien cf Ihe Eteta Clans]- b. Eulcarydttc Drlglns ef Hepllcattdn: wtere and when replicatipn takes place is cpnlmlled by Ihe drdere-d asseth at the replisen'le at Ihe crirjn. I. Fteplicatipn prdceeds in berth dlracttens from a single drlnIn en the clrcular pretrial-yeti: chrdmesdrne. II. Fteplicatien prdceeds in bath dllacttens frd-rn 'Iheusands et eriglns en each linear eukaryetll: chremnsnrne 1. Daughter llldlecules: 2 identical DNA {daughter} strands are practiced by the replicafien at Ihe 2 strands cf the DNA. '5‘". Teldrneres and Telemarese: Heplicatlen and Terminatlen a. Fteplicatinn prdceeds in bcth direcijdns. frern numerms cripins, Ihis replicates must at the dhmmdspn'el DNA. but there is a prdh-lem replicating the 2 ends at [new DNA nflecules. regicns eelled Telemeres- b. Because lagging strand synthesis requlles prll'ners ahead at the precess. when the last primer is renewed. a [telemeret sInnle-stranded tip remains In the daughter DNA rndlecules. I. ll Ihis Iwere repicated min. the strand mlsshn sequences at the end wduld hecdrrie a shertaned ens after replicatidn, evenhealyr essential cddhn hfdnnatlen wduld be Inst. 1:. Telemerase: an enzyme that adds the shcrt repeats tn the 3' ends at DNFI. mdlecules- I. It eeniee a small RNA mdledule which acts as a term-late fer the additipn df mplementanr DNA sequence I.irl'lich is added In the 3’ overhang. 1. The Telemerase RNA first anan tn the 3' DNA everhang. 1iIIi'hII:h Is extended using the RNA and pretein. 3. After the adtltlen et a few nucledttdes tn the 3' everltang. Ihe telemerase FINA muses aldng the DNA se the 3' end can he turlher extended. 3. Frirnese and DNA Pdlrmerase then used the very lung 3' duerhang as a temphte to fill in the end ettha ether DNA strand. ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern