several hypotheses can account for the near identity of h-2kb , h-2kq , and h-2kw28 gene sequences : either recombination between h-2w28 and h-2b and h-2q sequences occurred before or at the time the strain was established , or the class i genes of the tw32 chromosome and the h-2b and h-2q genes found in inbred strains of mice have separated from each other rather recently .
C0008633
chromosome
C1521197
2q