Table 4.

MZ and DZ twin correlations

Item	Measure	N (pair)	r (MZ)	N (pair)	r (DZ)
Sucrose	Sweetness	251	0.16	35	0.43
	Liking	250	0.32	35	0.06
	Intensity	251	0.17	35	0.08
NaCl	Sweetness	250	0.09	35	0.04
	Bitterness	251	0.25	35	0.17
	Liking	251	0.31	35	0.35
Citric acid	Sweetness	172	0.10	22	−0.24
	Saltiness	171	0.20	22	−0.12
	Sourness	172	0.16	22	0.14
	Bitterness	172	0.18	22	0.23
	Burn	172	0.27	22	−0.14
	Liking	172	0.21	22	−0.02
10% ethanol	Saltiness	170	0.15	22	−0.14
	Sourness	172	0.19	22	0.04
20% ethanol (taste)	Sweetness	251	0.25	35	0.09
	Saltiness	250	0.21	34	−0.07
	Sourness	250	0.12	35	0.26
	Bitterness	251	0.09	35	0.28
	Liking	250	0.24	35	0.28
	Intensity	250	0.27	35	−0.04
20% ethanol (flavor)	Sweetness	171	0.19	21	−0.30
	Saltiness	171	0.11	21	−0.19
	Sourness	170	0.24	21	−0.26
	Bitterness	170	0.29	20	0.33
	Burn	172	0.22	22	0.08
	Liking	172	0.27	22	0.25
	Intensity	172	0.24	22	−0.24
Quinine	Sweetness	172	0.14	22	−0.07
	Saltiness	171	0.16	22	−0.09
	Bitterness	172	0.37	22	0.38
	Burn	172	0.42	22	0.06
	Intensity	172	0.35	22	−0.09
PTC	Sourness	251	0.40	35	0.42
	Bitterness	250	0.63	35	0.53
	Burn	250	0.45	35	0.16
	Liking	251	0.42	34	0.23
	Intensity	251	0.71	35	0.45
KCl	Sweetness	200	0.19	30	0.07
	Sourness	200	0.25	30	−0.04
	Burn	202	0.38	30	0.31
CaCl2	Sweetness	128	0.18	21	0.04
	Saltiness	127	0.25	21	0.33
	Sourness	128	0.42	21	0.29
	Bitterness	128	0.16	22	−0.23
	Burn	126	0.26	21	−0.16
Cinnamon	Liking	114	0.44	15	−0.01
	Intensity	114	0.39	15	0.60
Androstenone	Liking	56	0.51	9	0.38
	Intensity	56	0.48	9	0.28
Galaxolide	Liking	82	0.25	10	−0.22
Cilantro (odor)	Pleasantness	113	0.41	15	0.08
Basil (odor)	Pleasantness	113	0.38	15	0.25
Cilantro (flavor)	Pleasantness	114	0.52	15	0.39
Basil (flavor)	Pleasantness	114	0.42	15	0.43

(Number of pair is shown in the table). Traits were chosen for modeling if r[MZ] > r[DZ], and r[MZ] > 0.20.