100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary - DNA structure $9.69
Add to cart
Quickly navigate to
Preview
  2.  
  3. OCR
  4.  
  5. Biology A
  6.  
  7. DNA structure

Summary

Summary - DNA structure
 2 views  0 purchase
  • Course
  • DNA structure
  • Institution
  • OCR

A written PAG (investigation) into the DNA Structure using the software Rasmol will show you how to structure and layout your own PAG and can be used as a template and also great for theory. Is very in-depth and analysed.

Preview 1 out of 2  pages

Document information

  • August 3, 2023
  • 2
  • 2022/2023
  • Summary

Subjects

  • dna
  • pag
  • ocr
  • aqa
  • pag 10
  • dna structure
  • structure of dna
  • rasmol

Written for

  • A/AS Level
  • OCR
  • Biology A
  • DNA structure
All documents for this subject (1)

Seller

avatar-seller
sabazain

Content preview

PAG 10.1 – Investigating DNA structure using RasMol




The green and blue strands show that DNA
is made of two strands of polynucleotide
chains which are long chains of nucleotides
bonded together by phosphodiester
bonds, with hydrogen bonds between the
nitrogenous bases, a purine always pairs
with a pyrimidine, giving equal-sized
‘rungs’ on the DNA ladder. These can then
twist, into the double helix. This gives the
molecule stability.




The red strands highlight the sugar phosphate backbone
which run antiparallel to each other in opposite directions
from 5’ (where the phosphate group is attached to the fifth
carbon atom of the deoxyribose sugar) to 3’ (where the
phosphate group is attached to the third carbon atom of
the deoxyribose sugar). The five carbon sugar which is
deoxyribose from one nucleotide is bonded to a phosphate
group on another nucleotide by phosphodiester bonds and
the nitrogenous bases are bonded to the sugar molecule.
The molecule is very stable, and the integrity of the coded
Thymine or Adenine. information within the baseAdenine or Thymine.
sequences Adenine
is protected.
This base can be either always pairs with thymine, by
nitrogenous base means of two hydrogen bonds.
because the bases are Adenine is a purine which
complementary to means it has two rings.
each other. Thymine is a pyrimidine which
means it has one ring.
Cytosine or Guanine.
This can be either Guanine always pairs
nitrogenous base with cytosine, by means

of three hydrogen

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 sabazain. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $9.69. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

52510 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$9.69
  • (0)
Add to cart
Added