Illustrate an expected phenotypic ratio

Q1. What was the phenotypic ratio for offspring resulting from this testcross? Based on this phenotypic ratio, find out whether the F1 wild-type female male was double homozygous or double heterozygous for the eye colour and body colour alleles. Explain the answer. If your answer was doubling homozygous, depict an expected phenotypic ratio for the offspring produced from a testcross with a double heterozygous fly. If the answer was doubling heterozygous, illustrate an expected phenotypic ratio for the offspring produced from a testcross with a homozygous fly.

Q2. What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration?

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