| 1A4 - 3A | 20 . 20F - 20A1 |
bk1 << y << kz << bk2
Morphological changes present in the 1B region: continuous compaction, bands and interbands at euchromatin and heterochromatin junction fuse to form a block of chromatin, and discontinuous compaction, morphologically normal zones separate at least two zones of compaction.
Variegation for dor, ac, svr, pn, and kz decreased as Y's are added. Variegation for y insensitive to Y's.
Schultz, 10th April 1935.
deletion of most of X euchromatin