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Introduction to Genetics
Mendel
8
Science
8th Grade
07/12/2007

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Term
Trait
Definition
a characteristic that an organism can pass on to its offspring through its genes
Term
Heredity
Definition
the passing of traits from parents to offspring
Term
Genetics
Definition
a branch of biology that deals with the heredity and variation of organisms
Term
Purebred
Definition
an organism that always that always produces offspring with the same form of a trait as itself
Term
Gene
Definition
A segment of DNA on a chromosome that codes for specific trait
Term
Allele
Definition
the different forms of a gene
Term
Dominant Allele
Definition
an allele whose trait always shows up in the organism when the allele is present
Term
Recessive Allele
Definition
an allele that is masked when the dominant allele is present
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