. 2003 Jul 1;22(13):3367–3375. doi: 10.1093/emboj/cdg318

Table I. Circadian locomotor rhythms in Clk mutants.

Genotype	%R^a	Period^b	n^c
+/+	97	23.98 ± 0.05	34
Clk^ar/+	94	24.19 ± 0.06	51
Clk^ar/Clk^ar	1^d	AR^e	161
D1/+	65	25.62 ± 0.11	23
Clk^ar/D1	0	AR	26
Clk^Jrk/+	75	24.67 ± 0.13	16
Clk^ar/Clk^Jrk	0	AR	80
crygal4-Clk^ar/UASClock-Clk^ar	60	22.58 ± 0.07	25
Clk^Jrk/Clk^Jrk	0	AR	23
crygal4-Clk^JrkUASClock-Clk^Jrk	18	22.33 ± 0.13	37

^a% rhythmic.

^b± indicates SEM.

^cNumber of flies analyzed.

^dSingle weakly rhythmic fly.

^eAR = arrhythmic.