Table 1. Observed and expected numbers of controls and mutant Mcl1 ^EC by age.

	Control	Mcl1EC/+	Mcl1EC/EC	TOTAL
E10.5a
Observed	12	8	5	25
Expected	15	6	4	25
E14.5b
Observed	60	35	18 (2)c	110
Expected	55	27.5	27.5	110
Weaningd
Observed	96	37	3e	136
Expected	85	34	17	136

^aIntercrosses between Mcl1^fl/+ or Mcl1^fl/fl females and Mcl1^fl/+;Tie2-Cre^T/+ males.

^bIntercrosses between Mcl1^fl/fl females and Mcl1^fl/+;Tie2-Cre^T/+ males.

^cNumber in parenthesis denotes embryos that were phenotypically normal.

^dIntercrosses between Mcl1^fl/+ females and Mcl1^fl/+;Tie2-Cre^T/+ males.

^eP=0.001, χ²-test