Three linked autosomal loci were studied in cucumbers: fruit color (dark vs. light), tendril size (long vs. reduced) and fruitin

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Three linked autosomal loci were studied in cucumbers: fruit color (dark vs. light), tendril size (long vs. reduced) and fruitin

g (normal vs. early). Pure breeding early fruiting light cucumbers with long tendrils were mated to pure breeding normal fruiting dark cucumbers with reduced tendrils. The F1 were testcrossed and the testcross progeny are given below. Time to Fruit Tendril Size Fruit Color Number Normal Long Dark 360 Normal Long Light 32 Early Long Light 753 Early Long Dark 28 Early Reduced Dark 24 Early Reduced Light 494 Normal Reduced Light 35 Normal Reduced Dark 975

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inysia [2.3K] · Answer 1 · 2026-03-28T23:14:07+03:00

1. The total progeny recorded in the experiment is the sum of all progeny counts observed in the following categories: TIME TO FRUIT, TENDRIL SIZE, FRUIT COLOR, and NUMBER. The data reveals the following: Normal, normal, dark produced 370; normal, normal, light yielded 32; early, normal, light gave 971; early, normal, dark resulted in 28; early, reduced, dark led to 25; early, reduced, light produced 483; normal, reduced, light came to 36; lastly, normal, reduced, dark accounted for 810. Thus, the total is recorded as 2755 in progeny numbers. 2. The locus centered on TIME TO FRUIT with tendril size established at the beginning of the locus; the distance separating locus B and locus C is represented as R2.