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To identify the GRK6 homologue on chromsome 13 , several sets of closely - spaced primers were designed based on the GRK6 cDNA sequence and then used to amplify human genomic DNA by PCR .
 GENE: GRK6 homologue; GENE: GRK6 cDNA sequence
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: GRK6 homologue; GENE: GRK6 cDNA sequence