9721
The visualization of heavy and light chain genes in B-lymphoid cells showed that the three Ig genes are differentially and nonrandomly distributed in different nuclear subvolumes: the kappa genes were found to be preferentially confined to an outer nuclear volume, whereas the gamma and lambda genes consistently occupied more central positions within the nucleus , the lambda genes being more interior when compared with the gamma genes .
 DNA: lambda genes; DNA: Ig genes; DNA: gamma genes; DNA: kappa genes; cell type: B-lymphoid cells
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: lambda genes, Ig genes, gamma genes, kappa genes, B-lymphoid cells 
Answer:
 DNA: lambda genes; DNA: Ig genes; DNA: gamma genes; DNA: kappa genes; cell type: B-lymphoid cells