Unit 4 - Genetic information, variation and relationships between organisms
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Species and Taxonomy
Genom.cm#p.F
-
Genomics the of of
refers to
study the in contrast to
genetics which refers to the
study
'
genome
and their roles in inheritance
genes .
"
is of within of
The
genome
the complete set DNA a cell an
organism .
> The full of
proteome is the range proteins that a cell is able to
produce .
What are
species ? A group of that able to reproduce to produce fertile offspring ( similar
•
organisms are .
characteristics)
Organisms in the (
morphology ) behaviour and
biochemistry
'
same species are similar in
appearance ,
,
&
and have the same ecological niche ( behaviour
lifestyle )
Organisms the species share ancestor
•
in same a common .
breed their natural fertile
Organisms in the same species can
together in environment to produce
-
offspring .
What ? There between
hierarchy Large group divided smaller
'
is into
subgroups . is no
overlap
groups
.
Phylogeny % / Study of EVOLUTIONARY HISTORY
" " - - - - -
¥
> A phylogenetic classification system attempts to
species into based their
arrange groups on
evolutionary origins and relationships .
Two related if share
species are more
they
.
a more recent common ancestor .
Two related if share
species are less
they
.
a less recent common ancestor .
¥::÷ / CLASSIFICATION
the of
Taxonomy is science classification
•
.
There levels of Each called
•
are
eight groups used to
classify organisms .
group
is a taxon .
( plural : taxa )
A group of similar at level is called taxon
organisms
•
any a .
Domain Phylum class order Family Genus Species
kingdom
Acronym : Dear King Ihi / lip fame ever from Great Spain
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