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Mendel’s Laws
Genetics Applied
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Law of Segregation

Alleles coding for a
single trait (GG, Gg,
or gg) from a parent
separate from each
other into different
gametes.

When? During
meiosis when the
homologous
chromosomes
separate and then
the sister chromatids
separate.

How have we
demonstrated this?
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Law of Independent Assortment
 Inheritance
of one trait did not influence the
inheritance of another trait.
 Example: The
inheritance of height did not
determine the inheritance of flower color and vice
versa.
 Example: The
inheritance of Rh Factor (+ or -) does
not influence the inheritance of Blood Type
(A,B,AB,O)
 How
have we demonstrated this in class activities?
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Law of Independent Assortment
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Applied Mendel’s Laws
 Law
of Segregation: monohybrid cross
 Law
of Independent Assortment: dihybrid cross
Helpful Website for Additional Support
 http://www.sumanasinc.com/webcontent/animatio
ns/content/independentassortment.html