classification Flashcards
order of classification
Domain,
Kingdom,
Phylum,
Class,
Order,
Family,
Genus,
Species.
amoeba belong to the domain…
eukaryota
the three domains
archaea
bacteria
eukarya
5 kingdoms
plants
animals
protista
fungi
bacteria
the evidence that lead to the three domain model replacing the five kingdom model
use of molecular phylogeny
found similarities and differences between archaea and bacteria
such as membrane proteins and membrane bound organelles
why gel electrophoresis produces individual DNA profiles
differences in hypervariable regions of DNA
so produce different length fragments
fragments of DNA separated
charge on DNA fragments and gel electrode
negative DNA fragments
positive electrode
reasons for two organisms being mistook as single species
similar appearance
not observed if they can breed and produce fertile offspring
definition of species
mate to produce fertile offspring
why fragments of DNA can be separated by gel electrophoresis
DNA fragments are negatively charged
DNA fragments move when charge is applied by positive electrode
lighter fragments mover further
describe the information scientists can use to identify an organism as a new species
compare anatomy
use gel electrophoresis
unable to breed with other species and produce fertile offspring
reasons it may be hard to classify newly discovered organism as a separate species
species are evolving over time
variation within a species
species can interbreed to produce fertile offspring
describe how scientists use gel electrophoresis to show these to plants belong to the same species
obtain DNA from both plants
use restriction enzyme to cut DNA
DNA fragments loaded on agarose gel and current applied
fragments of DNA seperated
similar banding pattern
