Science / Genetics / Translocation: A chromosome aberration which results in a change in position of a chromosomal segment within the genome, but does not change the total number of genes present.
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Science / Genetics / Reciprocal Translocation: When a pair of chromosomes exchange exactly the same length and area of dna. Results in a shuffling of genes. MORE
Lifestyle / Adoption / Down Syndrome: A genetic disorder (caused by the presence of an extra chromosome), which results in physical and mental abnormalities. Physical characteristics include a flattened face, widely spaced and slanted eye MORE