DNA - The Code Of Life notes include:
- Discovery of DNA
- Nitrogenous bases
- Role of DNA
- Genes and non-coding DNA
- DNA replication
- RNA
- Protein synthesis (transcription & translation)
- Genetic aberrations
- DNA technology
- Mitochondrial DNA
Role of DNA
● Codes for proteins
● Forms genes carrying hereditary information
● Replicates for cell division
Genes and non-coding DNA
● Genes code for proteins = exons
● No-coding genes = introns (form functional RNA molecules)
DNA replication
- Mitosis
- During interphase
- Genetic code passed onto daughter cell
Process:
1. Process catalysed by DNA polymerase
2. Helicase = double-helix unwinds
3. Weak hydrogen bonds break
4. All strands are exposed templates
5. Free nucleotides pair up with complementary bases
6. New backbone of sugars and phosphates forms
7. New DNA strands twist into a double helix
8. Double helix winds itself around histones = chromosomes
9. Two exact copies formed
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 katemidd25. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.66. You're not tied to anything after your purchase.
