Review for unit test
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| heredity | the passing of traits from parents to offspring
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| allele | the different forms a gene may have for a trait
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| genetics | the study of how traits are inherited
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| dominant | form of a trait that appears to mask another form of the same trait
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| recessive | form of a trait that seems to disappear in a population, but can reappear
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| Punnett square | tool used to predict results in Mendelian genetics
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| genotype | genetic makeup of an organism
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| homozygous | organism with two identical alleles for a trait
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| heterozygous | organism with two different alleles for a trait
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| phenotype | physical trait that shows as a result of a particular genotype
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| incomplete dominance | production of a phenotype that is intermediate to those of the two homozygous parents
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| Gregor Mendel | Austrian monk father of genetics
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| sex-linked gene | an allele inherited on a sex chromosome
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| genetic engineering | methods for changing the DNA sequence that makes up a gene
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| probability | branch of mathematics that helps you predict the chance that something will happen
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| pedigree | tool for tracing the occurrence of a trait in a family
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| gene | a unit of genetic material that determines a trait(located on chromosomes-specific areas on a chromosome
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| meiosis | cell division that happens in sex cells only. produces gametes have one set of unpaired chromosomes
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| mitosis | body cell division
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| mutation | a change in DNA or chromosomes.
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| zygote | sex cells that have been fertilized resulting in a cell with a full set of chromosomes(a diploid cellformed by union of sperm and egg)
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| Homozygous recessive | eg., aa
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| Homozygous dominant | eg., AA
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| Heterozygous dominant | eg., Aa
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| trait | Characteristic that is inherited.
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| Chargaff's Law | A-T and C-G
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