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Unit: Heredity

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Term
Definition
DNA   A molecule that is present in all living cells and contains the information that determines the traits that a living thing inherits  
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Chromosomes   The main ring of DNA  
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Cell Cycle   The life cycle of a cell  
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Interphase   The period of the cell cycle during which activates such as cell growth and protein synthesis occur without visible signs of cell division  
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Mitosis   A process of the cell cycle that forms two nuclei  
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Cytokinesis   Division of a cytoplasm  
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Homologous Chromosomes   Chromosomes that have the same sequence of genes  
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Meiosis   A process in cell division during which the number of chromosomes decreases to half the original number  
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Asexual Reproduction   Reproduction that does not involve the union of sex cells  
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Sexual Reproduction   Reproduction in which the sex cells from the two parents unite  
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Fertilization   A male and female gamete that form a zygote  
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Heredity   The passing of genetic material from parent to offspring  
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Gene   Instructions for inherited trait  
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Allele   An alternative form of a gene that governs a characteristic  
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Genotype   The genetic make up of all organisms  
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Phenotype   An organism's appearance  
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Dominant   An allele that is fully expressed  
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Recessive   A masked Allele  
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Incomplete   Two Alleles are expressed  
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Dominance    
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Codominance   Two alleles are expressed  
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Punnett Square   A graph showing genetic cross  
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Probability   An event that will probably occure  
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Ratio   A comparison of two numbers through division  
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Pedigree   A family tree  
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Created by: punisher
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