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Vocabulary

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Term
Definition
GENETICS   study of biological inheritance patterns and variations in organisms  
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TRAITS   distinguishing characteristics that are inherited  
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PUREBRED   the offspring of many generations that have the same trait  
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CROSS POLLINATION   mating of organisms; sperm in pollen that fertilizes other plants eggs  
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GENE   piece of DNA that provides a set of instructions to a cell to make a certain protein  
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ALLELE   any of the alternative forms of a gene that may occur at a specific locus  
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HOMOZYGOUS   describes 2 of the same alleles at a specific locus  
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HETEROZYGOUS   describes 2 different alleles at a specific locus  
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GENOTYPE   typically refers to the genetic makeup of a specific set of genes  
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PHENOTYPE   physical characteristics or traits of an individual  
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DOMINANT   the allele that is expressed when 2 dominant alleles are present; more likely  
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RECESSIVE   allele that is only expressed when 2 copies are present; less likely  
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MONOHYBRID   crosses that examine the inheritance of only 1 specific trait  
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DIHYBRID   crosses that examine the inheritance of 2 different traits  
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