Table 1.

Orientation Patterns of Chromosome 11 and Their Frequency in Diploid Cells of Congenic [T38HxBALB/c]N Mice Showing T(X;11) and in PCTs

	T38H T[X;11]	Diploid PCTs	Triploid PCTs	Tetraploid PCTs	All PCTs
Both homologs in parallel to the nuclear border (PP)	90	24			24
One copy points with telomeric end to the nuclear center; the other copy is in parallel (PT)	35	19			19
Both homologs point with their telomeric end to the nuclear periphery (TT)	8	7			7
One copy points with its telomeric end and the other copy with its centromeric end to the nuclear periphery (CT)	15	7			7
Both copies point with their centromeric ends to the nuclear periphery (CC)	48	13			13
One homolog points with its centromere to the nuclear periphery; the other is parallel to the nuclear border (CP)	61	30			30
CCC			1		1
CCP			8		8
CPP			12		12
CPT			19		19
CCT			9		9
CTT			2		2
TTT			2		2
PTT			7		7
PPT			15		15
PPP			17		17
CCCP				1	1
CCPP				4	4
CPPP				4	4
PPPP				5	5
CPPT				3	3
CPTT				3	3
CCPT				3	3
PPTT				3	3
PPPT				5	5
PTTT				1	1

The table shows the orientation patterns observed in the diploid T38HT(X;11) cells and in PCTs with two, three, or four copies of chromosome 11. The last column lists the orientation patterns in all PCT cells together (C = centromere points to periphery, T = telomere points to periphery, P = chromosome is parallel to nuclear periphery).