Shared by 
Unlock all 10 pages
Get it free by sharing your own notes, buy just this one, or become a member and unlock documents with your plan.
How to unlock this document
Choose the way that suits you. Each one gives you all 10 pages to read online and the PDF to download.
Share your notes, unlock for free
2 free unlocks for every 5 approved uploads
- Upload your own lecture notes, assignments, essays or past papers
- PDF, Word, PowerPoint and Excel files all work, and you can send many at once
- We check each upload; you get a notification when it is approved
- Spend a free unlock on this document or any other, and keep it for good
- Shared under your public username, never your email
Then upload your notes from your profile.
Buy this document
$10 one-time payment
- All 10 pages of this document, yours to keep
- Download the PDF and read it any time, also offline
- No subscription and nothing to cancel
- Find it again any time under My Profile → Library
You log in or create a free account first, then pay securely.
Become a member
Unlock documents from the whole library, which keeps growing
- Choose any documents you like, up to your plan’s unlocks
- Documents you unlock stay yours, even if you cancel later
- Your unlocks start again with every renewal
- Secure checkout by Dodo Payments
You log in or create a free account first, then pay securely.
Compare the plansAlready a member, or bought this before? Log in to open it
About this document
- Pages
- 10 pages
- Price
- $10 one-time, yours to keep
- Membership
- Included in every plan
- Format
- Subject
- Biochemistry, Biology
This document explains the function of DNA polymerase, its role in DNA replication, and its mechanism of action. It covers the requirements for DNA synthesis and the different families of DNA polymerases.
What's inside
- Function of DNA polymerase
- Role in DNA replication
- Mechanism of action
- Requirements for DNA synthesis
- Families of DNA polymerases
Who it is for: For students of molecular biology, genetics or biochemistry. (Undergraduate)
Share with classmates: WhatsApp Telegram X LinkedIn Facebook
Summary
DNA polymerases are enzymes that build DNA strands. Students learn about the role of DNA polymerases in DNA replication, their structure and function, and their use in molecular biology experiments.
DNA Polymerase Function
DNA polymerases add nucleotides to a new DNA strand. They need a primer and a template strand to start. They work in a 5'-3' direction and need a magnesium ion for activity.
DNA Replication Process
DNA replication involves unwinding the DNA double helix. A helicase enzyme is required for this. The process follows the semiconservative model of DNA replication.
Error Correction
Some DNA polymerases correct mistakes in newly-synthesized DNA. They reverse direction by one base pair and excise the incorrect base pair.
Variation Across Species
DNA polymerases have a highly-conserved structure across species. Viruses also encode special DNA polymerases, such as reverse transcriptase in retroviruses.
Key terms
- DNA polymerase
- An enzyme that builds DNA strands by adding nucleotides.
- Primers
- Short pieces of RNA or DNA that provide a starting point for DNA synthesis.
- Helicase
- An enzyme that unwinds the DNA double helix to facilitate replication.
- Proofreading
- The process by which DNA polymerases correct mistakes in newly-synthesized DNA.
- DNA polymerase families
- Groups of DNA polymerases that share similar structures and functions.
- Replisome
- A complex of proteins involved in DNA replication, including DNA polymerase III.
Questions this document helps with
- What role do DNA polymerases play in DNA replication?
- How do DNA polymerases correct mistakes in DNA synthesis?
- What are the different families of DNA polymerases?
Summary written with AI from the document's text.
Ask the AI Teacher
Ask any question about this document or your course, and get a clear explanation.
Log in to ask Create a free account
Free accounts can ask 5 questions a day.