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Table 2.

Recovery of conceptuses from intercross matings of TC/+ mice

Age
Genotype∼6.75 dpc n (%)∼7.5 dpc n (%)∼8.0 dpc n (%)∼8.5 dpc n (%)∼9.0 dpc n (%)∼9.5 dpc n (%)∼10.5 dpc n (%)∼13.5 dpc n (%)
+/+ 14 (25.0) 31 (22.5) 123 (25.7) 31 (23.8) 7 (31.8) 3 (27.3) 6 (31.6) 4 (20.0) 
TC/+ 24 (42.9) 68 (49.3) 234 (49.0) 56 (43.1) 8 (36.4) 7 (63.6) 8 (42.1) 8 (40.0) 
TC/TC 13 (23.2) 32 (23.2) 96 (20.1) 38 (29.2) 7 (31.8) 1 (9.1) 
Resorptions 5 (8.9) 7 (5.0) 25 (5.2) 5 (3.8) 5* (26.3) 8 (40.0) 
Number of litters 17 54 20 
Age
Genotype∼6.75 dpc n (%)∼7.5 dpc n (%)∼8.0 dpc n (%)∼8.5 dpc n (%)∼9.0 dpc n (%)∼9.5 dpc n (%)∼10.5 dpc n (%)∼13.5 dpc n (%)
+/+ 14 (25.0) 31 (22.5) 123 (25.7) 31 (23.8) 7 (31.8) 3 (27.3) 6 (31.6) 4 (20.0) 
TC/+ 24 (42.9) 68 (49.3) 234 (49.0) 56 (43.1) 8 (36.4) 7 (63.6) 8 (42.1) 8 (40.0) 
TC/TC 13 (23.2) 32 (23.2) 96 (20.1) 38 (29.2) 7 (31.8) 1 (9.1) 
Resorptions 5 (8.9) 7 (5.0) 25 (5.2) 5 (3.8) 5* (26.3) 8 (40.0) 
Number of litters 17 54 20 

All genotypes were confirmed by PCR. For all stages the expected percentage of +/+, TC/+ and TC/TC conceptuses was 25%, 50% and 25%, respectively. Where possible (from ∼10.5-13.5 dpc),resorbing conceptuses were genotyped. Death of the conceptus was defined as absence of heart beat.

*

One TC/+ conceptus was dead and resorbing; all other dead, resorbing conceptuses were TC/TC.

Two TC/+ conceptuses were dead and resorbing;all other dead, resorbing conceptuses were TC/TC.

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