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18 Cards in this Set
- Front
- Back
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the study of heredity
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genetics
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the delivery of characteristics from parent to offspring
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heredity
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the specific segment of a DNA code a physical characteristic or trait that is expressed in an organism comes from
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gene
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Different forms of a gene trait
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allele
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the scientific term used to name a sex cell which contains only half of a parent’s DNA
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gamete
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when parents join together in order for a new organism to be formed with a complete set of DNA
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fertilization
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offspring/individual resulting from cross fertilization of parents with two different alleles
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hybrid
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species that are easy to observe, reproduce quickly, and are easy to manipulate
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model system
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- organisms that have two identical dominant alleles
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Homozygous dominant genotype
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organisms that have two different alleles
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Heterozygous Genotype
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organisms that have two identical recessive alleles
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homozygous recessive
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physical traits
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phynotype
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one allele is not completely dominant over another allele
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incomplete dominance
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a gene with more than two alleles human blood type
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multiple alleles
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traits controlled by two or more genes
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polygenic traits
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– two sets of homologous chromosomes two alleles for each gene
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diploid
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2N
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diploid
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1N
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haploid
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