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Vocab

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Term
Definition
Chromosome   a cell that carries genetic structure in the form of genes  
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Gene   a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring  
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Allele   one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.  
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Meiosis   a cell division that results one sell to split into 4 cell with half the chromosomes each time.  
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Gamete   a cell that is from the male or female that is able to unite with another of the opposite sex  
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Fertilization   the act of a male sperm and a female egg to joining together  
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Dominant   One allele that totally masks the other allele  
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Recissive   that one of a pair of alternative alleles whose effect is masked by the activity of the second  
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Genotype   the genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits.  
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Phenotype   the observable constitution of an organism.  
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Homozygous   having identical pairs of genes for any given pair of hereditary characteristics  
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Heterozygous   Two different versions of the same allele  
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Autosome   any chromosome other than a sex chromosome.  
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Sex Chromosome   a chromosome, differing in shape or function from other chromosomes, that determines the sex of an individual.  
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