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Ch. 12 Sec. 1
Mendel's Work
10
Science
7th Grade
11/13/2012

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Term
heredity
Definition
the passing of physical characteristics from parent to offspring
Term
trait
Definition
form of a characteristic E.g. seed color, height of plant
Term
gentics
Definition
scientific STUDY of heredity
Term
fertilization
Definition
the process in which an egg cell and a spern cell join to form a new organism
Term
purebred
Definition
the offspring of many generations that have the same trait
Term
gene
Definition
factors that control a trait
Term
alleles
Definition
different forms of a gene
Term
dominant allele
Definition
one whose trait always shows up in an organism when the allele is present
Term
recessive allele
Definition
one whose trait is hidden whenever the allele is present
Term
hybrid
Definition
an organism that has two different alleles for a trait
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