Exam (elaborations)
BIOS260 Chapter 9 Questions and Answers 100% Solved
- Course
- Institution
BIOS260 Chapter 9 Questions and Answers 100% Solved
[Show more]
Content preview
BIOS260 Chapter 9 Questions and Answers 100% SolvedWhat substrates are used in the DNA synthesis reaction? Correct Ans-Deoxyadenosine
triphosphate
Deoxyguanosine triphosphate
Deoxycytosine triphosphate
Deoxythymidine triphosphate
List the different proteins and enzymes taking part in bacterial replication. Give the function
of each in the replication process. Correct Ans-1.Initiator proteins
bind to the origin and separates strands of DNA to initiate replication.
2. DNA helicase
unwinds the double helix by breaking the hydrogen bonding between the 2 strands at the
replication fork.
-pushes forks open to make a bubble
3. Single-stranded binding protein (SSB protein) stabilizes single-stranded DNA prior to
replication by binding to it, thus preventing the DNA from pairing with complementary
sequences.
, BIOS260 Chapter 9 Questions and Answers 100% Solved
OTHER WORDS- attach to single stranded DNA and prevent secondary structures from
forming.
-holds bubble open
4.DNA gyrase
-moves ahead of the replication fork, making and resealing breaks in the double-stranded
helical DNA to release the torque that builds up as well as a result of unwinding at the
replication fork
-untwists DNA
5. DNA primase
Specific for DNA
an RNA polymerase
Synthesizes a short RNA primer to provide a 3'-OH group for the attachment of DNA
nucleotides
6. DNA polymerase III
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GOLDTUTORS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82871 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now