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Natural Selection
Reproduction and
Variation
Genes
DNA and Modern
Technology
Modern Evidence
for Evolution
Fossils and skeletons
can help lay out a story
of evolution by looking
at changes in
structures.
DNA can be used to
show how closely
related organisms are
by looking at changes in
the DNA.
Darwin and Lamarck
were 2 scientists who
proposed theories of
evolution.
Organisms have of the
same species have many
variations of traits.
Genes can be dominant
or recessive.
Blood types follow a
simple pattern of
inheritance and can be
used to determine
possible relationships.
Darwin’s theory of
evolution was called the
Theory of Natural
Selection.
Plants and animals,
both, have genes and
pass on traits.
Dominant genes show up
and “overpower” other
genes.
DNA is unique to each
individual.
Natural Selection
states that organisms
that are well adapted
survive to reproduce,
those that are not die
off.
Sexual reproduction
produces offspring with
50% of their genetic
data from each parent.
Recessive genes show
only when an organism
has 2 copies, otherwise
they “hide.”
DNA can be used to
determine parentage by
comparing markers on
the parents DNA to the
child’s.
Camouflage can help an
organism to be well
adapted and survive to
reproduce.
Asexual reproduction
produces offspring with
genes that are identical
to the parent.
Gregor Mendel was a
scientist and monk who
studied pattern of
inheritance.
There are ethical issues
that need to be
considered when using
genetic information
about people.
Some variations in
species are better
adapted than others
and survive to
reproduce at a higher
rate.
Organisms that
reproduce sexually have
a special technique for
passing genes (and
chromosomes) to their
offspring.
Punnett Squares can be
used to predict what
combination of genes
will be passed to
offspring form its
parents.
Pedigrees are another
tool that can be used to
study and predict
patterns of inheritance.