Consider individuals with two haploid sets of autosomes (2A) and no Y-chromosome. Based on the genetic balance system of sex determination and X-inactivation mechanisms, match the X:A ratios with the correct organism type, primary sex, and expected number of Barr bodies. Given parameters: i. X:A ratio = 0.5 ii. X:A ratio = 2.0 Organisms: A. Human, B. Drosophila Primary Sex: I. Male, II. Female, III. Metafemale Barr bodies: a. Zero, b. One, c. Two, d. Three

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Biology · Genetics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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i - A - II - a; ii - A - II - d; i - B - I - a; ii - B - III - a

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Answer 1

i - A - II - a; ii - A - II - d; i - B - III - a; ii - B - I - a

Answer 2

i - A - II - c; ii - A - I - d; i - B - I - c; ii - B - II - b

Answer 3

i - A - I - a; ii - A - II - c; i - B - II - a; ii - B - I - a

Answer 4

i - A - II - a; ii - A - II - d; i - B - I - a; ii - B - III - a

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