Summary
Summary Alevel OCR Biology A notes on Patterns of Inheritance
Alevel OCR Biology A notes on Patterns of Inheritance from an A* biology student. Plus diagrams.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
Seller
FollowContent preview
-ware
l ocus
it's
Patterns of Inheritance
length of
-gene= t hat
DNA codes for polypeptide/protein
-wal:position of gene an chromosome
Comozygote (HH)
-
genotype:alleles an individual pasesses >heleozygous (Hh)
-
phenotype:observable characteristics of an
organism
codominance:
-
b oth alleles expressed in
phenotype at same tire
(xx),
-
sexlinhage=
women men (XY)
=most sex linked genes on long chromosome
x
Autosomal linkage autoscre (chromosome that out sexchromocre), or
-
=
sale
a two more
genes on
done
chromosome assen
independently dering weicis
Phevolype= (diffaucles), factors
-
genetic factors emironmental (diff global environment
individuals: afferences D NA
-
same species: similar genotype, in base sequence -
genetic variation in
sexual reproduction
↳
crossing von-sister
over= chromatide exchange alleles
=meiosis I, lomologous chromosomes pair up, non-sister chromatic pair up entangle,
+
crossing points (diasmatas, entanglement stress or DNA
molecules =
chromatic section
breaks rejoins w/ chromate
+
of other chromosome.
=new combination of alleles on a chronosaries
↳
Independent assortment dift
=
combo of alleles daughter
in als de random
to alignment of
↳ increase genetic variation between gameles.
honologate pairs along equator
the of the
spindle metaphase
in 1.
↳
Random gamete fusion:e a c h garrete:d ifferent alleles, lentilication:
any male garrete uses of any
female garel= zygote
↳
Mutations alleles random change D NA base
-
generous new sequence
=
in
-
Maolybrid crosses auells
=
from are single gene paced from are generation the
to
next=punner square
sex linkage purer square phenotypes
-
in not spread evenly across
=
sexes
Epistaxis different affect
-
a
-
genes an chromosomes same feature
d iff
Chi-squared: between expected obiered significance,categorical
-
+ values experiment
in
+
data
I
=
E
=
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 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 lottiemcgowan1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75057 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now