Summary
Summary DNA, RNA IB biology HL
- Course
- Institution
I used only these notes (+ past papers) to prepare for the exams
[Show more]
Seller
Follow
ayaulymtoleutayeva
Content preview
1/ 2 6. .
Structure of DNA and RNA 1/
Phosphate +
sugar +
organic base = nucleotide + 2 water
The sugar and phosphate form the "backbone" of the
nucleic acid with ,
the organic bases sticking .
out
DNA double helix (strands
is a are antiparallel
10 nucleotides
~
complete one turn of the helix :
Theory of knowledge
Rosaline Franklin 1950 - -
created X-ray 5
z
diffraction images that revealed the
bond
hydrogen
, 1
TX
↓ &
I
arrangement of atoms in molecules M - covalent
bond -
1
↓ & = -
Maurice Wilkins shared the know -
-v
ledge with James Watson ↓ & -, - 1
3 51
Watson Crick and Wilkins were
DNA
,
awarded Nobel Prize in 1962
.
Franklin died from oravian cancer
at age 37.
, The elucidation of the structure of DNA
·
Phoebus Levene from Russia-defined the components of nucleotide
,
-
nucleic acid-polymer; nucleotide-monomer
· Oswald Avery from Canada/USA
,
demonstrated that DNA
carries genetic information
· Erwin Chargaff from ,
Austria -
present in the same
A
amount T
as .
This led to idea of complementary base
pairs
· Linus Pauling-suggested a helix shape for some
proteins,
using X-ray crystallography
·
Rosaline Franklin Wilkins
, ,
Watson and Crick-shape of DNA
antiparallel strands to satisfy bond angles
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 ayaulymtoleutayeva. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.68. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now