Table 2. Rates of interhomolog and intra/sister chromatid in cells grown in medium without added copper, and in medium with 1.4 mM copper.

Strain	Relevant genotype	Condition	CEN8-hphMX4 interhomolog	hphMX4-URA3 interhomolog	URA3-kanMX4/CAN1 interhomolog	hphMX4-kanMX4/CAN1 interhomolog	Intra/sister chromatid
YZ103	Wild-type	No added copper	1.1 × 10−5 (0.9–1.7) [1]	5.1 × 10−6 (4.4–7.0) [1]	6.0 × 10−6 (4.4–8.1) [1]	1.1 × 10−5 [1]	1.0 × 10−4 (0.7–1.2) [1]
YZ103	Wild-type	1.4 mM copper sulfate	1.3 × 10−5 (1.1–1.6) [1.2]	8.6 × 10−5 (7.4–11) [17]	8.8 × 10−5 (7.5–11) [15]	1.7 × 10−4 [15]	2.3 × 10−3 (2.0–2.7) [23]
YZ117	cup2/cup2	No added copper	8.8 × 10−6 (6.2–13) [0.8]	3.6 × 10−6 (2.3–4.8) [0.71]	4.2 × 10−6 (3.1–5.7) [0.7]	7.8 × 10−6 [0.71]	1.1 × 10−4 (0.7–1.4) [1.1]
YZ118	cup2/cup2 + p425-GPD-CUP1	No added copper	6.8 × 10−6 (4.6–10) [0.62]	4.3 × 10−6 (2.7–4.9) [0.84]	4.1 × 10−6 (3.1–5.2) [0.68]	8.4 × 10−6 [0.76]	6.7 × 10−5 (5.0–7.7) [0.67]
YZ118	cup2/cup2 + p425-GPD-CUP1	1.4 mM copper sulfate	1.3 × 10−5 (0.9–2.5) [1.2]	1.2 × 10−5 (1.1–1.6) [2.4]	9.9 × 10−6 (6.9–11) [1.7]	2.2 × 10−5 [2]	8.4 × 10−5 (7.3–10) [0.84]

Numbers in parentheses after the rate estimates are the 95% C.I. Numbers in square brackets in bold are the rates divided by the rate observed in YZ103 grown in medium without added copper. The number of cells per culture was determined using synthetic dextrose-complete medium containing 0.2 mM copper.