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Genetics
Study of heredity
14
Science
7th Grade
10/29/2009

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Term
What is heredity
Definition
the passing of traits from parent to offspring
Term
What is genetics
Definition
study of how heredity works
Term
Who is the father of genetics
Definition
Gregor Mendel
Term
What is an allele
Definition
a hereditary trait
Term
what is a hybrid
Definition
a trait with 2 dissimilar alleles
Term
what is a purebreed
Definition
a trait with 2 similar alleles
Term
what is genotype
Definition
its the ratio which expresses the allele combination
Term
what is phenotype
Definition
it is the ratio which expresses the appearance of the allele
Term
what is homogenous
Definition
when 2 alleles are the same
Term
what is heterozygous
Definition
when 2 alleles are different
Term
what is recessive
Definition
the trait which is not seen (aa)
Term
what is dominant
Definition
the trait which overshadows the recessive (Aa-AA)
Term
What is a Punnett Square
Definition
Helps to determine the genotypic and phenotypic ratio
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