Chromosomes - Coiled structures found in the nucleus, made from large molecules of DNA, Cyctic Fibrosis - A genetic disorder caused by a recessive allele that affects many organs of the body, DNA fingerprinting - A technique used to show the unique patterns in an individual's DNA, Gene - A section of DNA that codes for a protein, Genotype - This describes the genetic makeup of an individual regarding a particular characteristic e.g. Ff, ff, Heterozygous - As individual with different alleles for a characteristic, e.g. Tt, Homozygous - An individual with two identical alleles for a characteristic, e.g. DD, dd, Huntington's disease - A genetic disorder caused by a dominant allele that affects the brain, Meiosis - This type of cell division produces cells with only half the number of original chromosomes, Mitosis - The process of cell division in normal body cells which produces two identical cells. This process is used for growth and repair, Phenotype - This describes the physical appearance of an individual regarding a particular characteristic, e.g. dimples, no dimples, Stem cells - These cells are undifferentiated and can become any kind of cell,

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