
Gregor Mendel |
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Mendel's
genetic laws
Once upon a time (1860's), in an Austrian monastery,
there lived a monk named Mendel, Gregor Mendel.
Monks had a lot of time on their hands and Mendel
spent his time crossing pea plants. As he did this
over & over & over & over & over
again, he noticed some patterns to the inheritance
of traits from one set of pea plants to the next.
By carefully analyzing his pea plant numbers (he
was really good at mathematics), he discovered three
laws of inheritance...[continued] |
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The Ins and Outs of
Pedigree Analysis, Genetic Diversity and
Genetic Disease Control
As
dog breeders, we engage in genetic "experiments"
each time we plan a mating. The type of mating selected
should coincide with your goals. To some breeders,
determining which traits will appear in the offspring
of a mating is like rolling the dice ,a combination
of luck and chance. For others, producing certain
traits involves more skill than luck- the result
of careful study and planning....[continued,
external link] |
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Basic
Genetic Concepts
Most of you are undoubtedly aware that color and
certain diseases such as progressive retinal atrophy
(PRA) are inherited — that is, passed down
from one or both the parents. However, you may wonder
how a trait that does not appear in the dam's pedigree
can suddenly turn up in a litter out of... [continued]
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Significant
Relationships
A dog who has won many shows and earned
many titles may have been quite popular as a stud
and may have sired more winning progeny than other
contemporary males. However, that does not guarantee
that he will have more impact five or ten generations
down the line than another dog who was bred only
two or three times... [continued]
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The
Dog Genome Project
The dog genome project is a collaborative
study involving scientists at the University of
California, the University of Oregon...[continued]
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Genetic
Testing: A Guide for Breeders
By
now today's breeders have heard about genetic testing,
and DNA, but what is really involved in finding
a mutation, and what do the results...[continued]
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Baby
Steps Through the Punnet Square
The dog genome project is
a collaborative study involving scientists at the
University of California, the University of Oregon,
and the Fred Hutchinson Cancer Research Center aimed
at producing a map of all of the chromosomes in
dogs, which can be used to map the genes causing
disease and those genes controlling morphology and
behavior. Different dog breeds...[continued]
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The
punnett Square practice Page
On this page is a set of "typical" genetics
questions that are best answered using a punnett
square. It would be handy for you to have a pencil
& some paper to work out the problems, &
then you can click to see an explained solution
to each. For those who would benefit from a step-by-step
explaination of how to use a p-square, click the
link to the right "Baby Steps through the Punnet
Square". As always, do your best...[continued]
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The
Nature of Genetic Disease
Inborn
Errors of Metabolism: The True Genetic "Diseases",
Conformational "Diseases" - The Result
of Unnatural Selection by John Armstrong...[continued]
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