Separable from: P{lacW}MCPH1SH0220.
The lethality of the "l(2)SH0220" chromosome maps outside the MCPH1 region, indicating that the lethality (represented by the l(2)SH0220SH0220 allele) is separate from the P{lacW}MCPH1SH0220 insertion which maps within an intron of MCPH1.