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Retinoic acid ( RA ) distinctly modulated the erythroid differentiation program of normal erythroid progenitors and erythroblasts reversibly transformed by a conditional tyrosine kinase oncogene .
 DNA: tyrosine kinase oncogene; cell type: normal erythroid progenitors
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: tyrosine kinase oncogene; cell type: normal erythroid progenitors