Genetics Brooker summary chapter 9 - Molecular structure of DNA and RNA
37 views 0 purchase
Course
Genetics
Institution
Vrije Universiteit Amsterdam (VU)
Book
ISE Genetics
These summaries (in English and provided with many supporting figures from the book) will help you to obtain a great grade for the course 'Genetics' in the first year of Biomedical Sciences at the VU. With learning al my summaries and lecture notes (see my other documents), I finished this course w...
Summary ISE Genetics Analysis and Principles - Genetics Part 2!!
Chapter 1, overview of genetics
Complete Test Bank Genetics Analysis and Principles 7th Edition Brooker Questions & Answers with rationales (Chapter 1-29)
All for this textbook (60)
Written for
Vrije Universiteit Amsterdam (VU)
Bachelor Biomedical Sciences
Genetics
All documents for this subject (37)
Seller
Follow
simonezweers19
Reviews received
Content preview
Genetics summary – VU BMS 2020/2021
Simone Zweers
Reference: Brooker, Genetics: Analysis and prinicples, 7 th edition
Chapter 9 : Molecular structure of DNA and RNA
1
, Genetics summary – VU BMS 2020/2021
Simone Zweers
Reference: Brooker, Genetics: Analysis and prinicples, 7 th edition
9.1: Identification of DNA as the genetic material
- Genetic material must meet four criteria to fulfil its role
o Information: it must contain the information necessary to construct an organism, it
determines the inherited traits
o Transmission: reproduction: the material must be passed (parents to child)
o Replication: it must be copied to be passed
o Variation: genetic material must vary in ways that can account for the known phenotypic
differences within each species.
- Weismann and Nageli: chromosomes carry the genetic material. They contain DNA and proteins,
RNA is found in the vicinity. Further research:
Griffith’s experiments indicated that genetic material can transform streptococcus
- Griffith studied the bacterium Streptococus pneumoniae (pneumococci). Certain strains secrete a
polysaccharide capsule, some don’t. Streaked onto petri scales with a solid growth medium
the capsule-secreting strains produce colonies with a smooth morphology, the strains without
produce rough colonies.
- These different forms also vary in their virulence or ability to cause disease
o Type S capsule allows bacteria to escape attack by immune system
o Type R destroyed by the animal’s immune system
o Type S heat killed mouse survived
o Type R + Type S heat killed mouse died, living type S was found
- Type R was transformed into type S by the dead type S transformation
o The transformed bacteria had the information to make a capsule, variation for the ability
to create a capsule, the genetic material necessary to create a capsule must be
replicated to be transmitted from mother to daughter cell (cell division).
o Conclusion: genetic material from the dead type S had been transferred to the living type
R and provided it with a new trait.
2
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 simonezweers19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.74. You're not tied to anything after your purchase.
