Unit 2 Summary Overview

stubbornnessuglyBiotechnology

Dec 12, 2012 (4 years and 11 months ago)

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Energy Flow in
Ecosystems

Parts of an ecosystem

Food chains

Food webs

Producers, consumers
and decomposers

Energy loss

Pyramid of numbers,
energy and biomass


Variety of
Species in
Ecosystems

Importance of
Biodiversity

Ecosystem stability

Adaptation

Human impact on
biodiversity

Competition

Behavioural
adaptation


Variation within
Species


Fertilisation in
mammals and plants

Chromosomes and
DNA

DNA Protein

Meiosis

Random assortment

Sex Determination



Phenotype and
Genotype

Monohybrid cross

P, F
1

and F
2

generations

Homo
-

and hetero
-
zygous, dominant and
recessive

Co
-
dominance

Polygenic inheritance

Environmental impact

Natural Selection



Applied
Genetics


Selective breeding

Process of genetic
engineering

Applications of genetic
engineering: insulin,
factor VIII

Advantages and
Disadvantages of both
processes

UNIT 2



ENVIRONMENTAL BIOLOGY AND GENETICS