X

Download Dna Replication PowerPoint Presentation

SlidesFinder-Advertising-Design.jpg

Login   OR  Register
X


Iframe embed code :



Presentation url :

Home / Health & Wellness / Health & Wellness Presentations / Dna Replication PowerPoint Presentation

Dna Replication PowerPoint Presentation

Ppt Presentation Embed Code   Zoom Ppt Presentation

PowerPoint is the world's most popular presentation software which can let you create professional Dna Replication powerpoint presentation easily and in no time. This helps you give your presentation on Dna Replication in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.

The uploader spent his/her valuable time to create this Dna Replication powerpoint presentation slides, to share his/her useful content with the world. This ppt presentation uploaded by bharatb in Health & Wellness ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more.

About This Presentation

Dna Replication Presentation Transcript

Slide 1 - Nature of the Genetic Material Property 1 - it must contain, in a stable form, information encoding the organism’s structure, function, development and reproduction Property 2 - it must replicate accurately so progeny cells have the same genetic makeup Property 3 - it must be capable of some variation (mutation) to permit evolution
Slide 2 - Historical Perspective 1928 - Griffith discovered a “transforming principle” in heat killed bacteria (Property 1) 1944 - Avery demonstrated that the transforming principle is sensitive to DNase 1952 - Hershey & Chase used 32P and 35S labelling, of bacteriophage T2 DNA and protein respectively, to show only the DNA enters the host cell and can be passed to progeny phage (consistent with Property 2)
Slide 3 - Replication of DNA and Chromosomes Speed of DNA replication: 3,000 nucleotides/min in human 30,000 nucleotides/min in E.coli Accuracy of DNA replication: Very precise (1 error/1,000,000,000 nt)
Slide 4 - Meselson and Stahl (1958)
Slide 5 - ppt slide no 5 content not found
Slide 6 - Taylor and co-workers (1957) 3H-labelled chromosomes after one further replication in unlabelled media
Slide 7 - Bi-directional replication in E. coli
Slide 8 - Only One Replication Origin in E. coli
Slide 9 - Multiple Origins in Eukaryotes Eukaryotes replicate their DNA only in S-phase Eukaryotes have larger chromosomes Replication speed 2,600 npm. Largest Drosophila chromosome is 6.5 x 107 nucl., but it can replicate in 3-4 min. From a single origin, bidirectional replication would take 8.5 days. ==> The chromosome must have some 7,000 origins of replication.
Slide 10 - A replicating Drosophila chromosome
Slide 11 - Origins initiate replication at different times.
Slide 12 - Two DNA polymerases are involved in eukaryotic replication DNA polymerase d has no primase activity and is thought to be the polymerase that synthesizes the leading strand. DNA polymerase a has associated primase activity and is thought to be the polymerase that synthesizes the lagging strand.
Slide 13 - DNA Synthesis at the Origin Additional factors: PCNA (proliferating cell nuclear antigen) DNA helicase Replication factor C OTHERS
Slide 14 - Replication of Nucleosomes Eukaryotic DNA is packaged with histones in structures called nucleosomes. What happens to the nucleosome when the replication fork and the replication machinery pass by and open up the DNA double strand? Nucleosomes are found properly spaced on both postreplicative DNA strands immediately after passage of replication fork.
Slide 15 - ppt slide no 15 content not found
Slide 16 - A model for nucleosome replication
Slide 17 - The lagging strand of telomeres cannot be replicated by the usual mechanism
Slide 18 - Telomere and Telomerase Solution: special telomere sequence: tandem repeats of TTAGGG (human) telomerase, a specific enzyme with integrated RNA template.
Slide 19 - Telomere replication
Slide 20 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.
 

Frequently Asked Questions

> About SlidesFinder?

Slidesfinder is a website that allows users to upload and share their PowerPoint presentations online. It provides a platform for individuals and businesses to share their ideas and knowledge through presentations, and for others to view and download these presentations for educational or professional purposes.
Slidesfinder offers a wide range of presentation topics and categories, including business, education, science, technology, health, and more. Users can also search for presentations using keywords, tags, or by category. The website provides tools to create professional presentations with rich media, animations, and graphics.



One of the key features of Slidesfinder is its user-friendly interface, which allows users to easily upload, view, and share presentations. Users can also embed their presentations in their websites or blogs using the website's embed code feature.
Slidesfinder also offers premium services, such as the ability to create private presentations and to download presentations in high-quality formats. However, the basic features of Slidesfinder are free to use, making it accessible to anyone who wants to share their ideas and knowledge through presentations.

> How do I register with SlidesFinder?

Go to registration page (you can see signup link on top of website page) https://www.slidesfinder.com/signup . If you have facebook/gmail account them just click on SIGN IN WITH FACEBOOK OR SIGN IN WITH GOOGLE button, by this you will be a registered member of slidesfinder without filling any form, required detail automatically will be fatch from your account. If you do not a Facebook account, then click on "Signup". Fill all required fields and you will be a registered member of slidesfinder.

> Is slidesfinder account confirmation is mandatory?

Yes it is mandetory to active your account to login.

> Do I need to signup/login on SlidesFinder before uploading a PowerPoint presentation?

Yes, you need to login with your account before uploading presentation. Your username will be displayed on your uploaded presentation. Your registered email id is needed for sending your stats of uploaded presentation.

Slidesfinder is a sharing website for PowerPoint presentations search and share. Find your interest in the form of powerpoint presentations on slidesfinder and save your valuable time . On Slidesfinder you get presentations from our huge library of professional ppt presentations. We believe in making your search INFORMATIVE and FUN. Find your best ppt presentation from a pool of PowerPoint presentations stacked under important industry categories like business & management, heath & Wellness,eduction & training etc. We provide unique informative PowerPoint presentation for marketers, presenters and educationists. These professional PowerPoint presentations are uploaded by professionals from across numerous industry segments.These ppt presentations are available for FREE download.

Not just finding your interest, but facilitate you broadcast your interest. We have created this platform for easy sharing of PowerPoint presentations, ensuring that these presentations get maximum exposure. Create your slidesfinder account and upload PowerPoint presentations for free, share on social media platforms and BUILD YOUR CROWD WITH PRESENTATION !!

The Great Buddha says, "Share your knowledge.It’s a way to achieve immortality"! So, start sharing knowledge and we are here to make that immortal !!

© 2013-2022 SlidesFinder. All rights reserved.

Re-productivity of content are not allowed. Without prior written permission from author, commercial use of any content is illegal.