However , these genes are not constitutively active in B lymphocytes , suggesting that other regulatory mechanisms must play a role in determining the patterns of expression .
however , these genes are not constitutively active in b lymphocytes , suggesting that other regulatory mechanisms must play a role in determining the patterns of expression .
O O O O O O O O O B-cell_type I-cell_type O O O O O O O O O O O O O O O B-other_name O