Summary
OCR A-Level Biology Genetics Summary
- Course
- Institution
Handwritten Summary by an Oxford Medical Student which covers all content necessary for an A* in Genetics at OCR Biology A-Level.
[Show more]
Seller
Follow
faithcortis
Content preview
MutationChange in the sequence of bases in DNA
:
.
Substitution
Swapping of bases to form
·
a new nucleotide
:
.
Deletion/insertion Frameshift
·
:
mutation
for
Degenerative Several different codons code the some amino acid
·
:
Effects of mutations No effect , damaging beneficial
:
,
-
Silent No notable effect
· :
Nonsense Creates stop codon - shortened protein
·
a
:
Missense Creation of the incorrect amino acid
· :
Amorph :
loss of protein function
Reduced protein function
Hypomorph
:
Increased protein function
Hypermorph
:
Mutagens Chemical physical or biological agent that causes mutation
:
,
Ionizing radiation
·
physical
:
Chemical
Deaminating agents
·
:
Biological Alkylating agents base analogs
·
viruses
:
, ,
Chromosome mutation Occur in meiosis
:
Normally
·
Deletion Section of :
the chromosome breaks off and is lost in the cel
·
Duplication :
Sections of the chromosome duplicate
·
Translocation :
Sections bream off and join a
non-homologous Chromosome
·
Inversion Section breaus off reverses and the chromosome
rejoins
:
, ,
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller faithcortis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R69,93. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
85443 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now