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Molecular analysis using Southern blot hybridisation , PCR , and direct DNA sequencing showed that neither the patient nor her brother had a detectable deletion or other abnormalities of Y chromosome sequences , including the SRY (sex determining region of the Y chromosome) gene sequence .
 SRY (sex determining region of the Y chromosome) gene sequence
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 SRY (sex determining region of the Y chromosome) gene sequence