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Chapter 3 Cells Vocabulary Quiz
Chapter 3 Cells Vocabulary Quiz
11
Science
8th Grade
03/05/2012

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Term
Chapter 3 Vocabulary Quiz 8th
Definition
Term
Trait
Definition
A characteristic that an organism can pass onto it's offspring like chin shape
Term
Purebred
Definition
An organism that ALWAYS produces offspring with the SAME form of a trait as the parent
Term
Dominant Allele
Definition
An allele whose trait always shows up in an organism when the allele is present
Term
Recessive Allele
Definition
An allele that is masked when a dominant allele is present
Term
Gene
Definition
A segment of DNA on a chromosome that codes for a specific trait
Term
Allele
Definition
The different forms of a gene EX: smooth chin or cleft chin
Term
Phenotype
Definition
An organism's physical appearance or visible traits
Term
Genotype
Definition
An organism's genetic makeup or allele combinations
Term
Homozygous
Definition
Having two IDENTICAL alleles for a trait
Term
Heterozygous
Definition
Having two DIFFERENT alleles for a trait
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