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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