3.1 Flashcards
morphology
physical apearance
analogus features
features that look similar or have the same function
homologus structures
structures that shows common ancestry
dna sequences
the base sequence of all or part of the genome of an organism is worked out
dna profiling
leads to the dna profiling which looks at the non coding areas of dna to identify paterns
bioinformatics
development of software and computing tools needed to organise and analyse raw biological data
gel electrophoresis
dna is cut into fragments by restrictive enzymes
pcr to amplify
added to gel
pd is applied
DNA is negatively charged so moves to positive
fragments are separated
light move further
more close the bands the closer the relation
3 domains
archea
bacteria
eukaryota
binomial system
italics
capital then lower
genus then species
morphogical species concept
based on apearance
reproductive,biological species concept
species can interbreed to from firtile offspring and genes can flow
ecological species model
based on ecological neiche
mating recognition species model
based on mating behavior
genetic species model
based on dna
evolutionary species model
based on evolutionary relationships
limitations of species model
finding the evidence
plants frequently interbreed
ne sexual reproduction
fossils dont have dna
how are finding validated
published in a journal
peer reviewed
presented at a conference
experiment repeated
3 domain or 5 kindom
molecular phylogeny e.g protein biochemistry
similarities between archea and bacteria
e.g membrane structure
why does gel elctrohersis work
each person has individual dna
what can be used to classify a new species
compare physical characteristics
observe behavior/neiches
use dna sequencing
use gel electrophoresis
see if breeds for fertile offspring
bioinformatics
ecological neiches
