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Which one of the following conditions correctly describes the manner of determining the sex in the given example? 1. Homozygous sex chromosomes (XX) produce make in Drosophila 2. Homozygous sex chromosomes (ZZ) determine female sex in birds 3. XO type of sex chromosomes determine male sex in grasshopper 4. XO condition in humans as found in Turner Syndrome, determines female sex

Which one of the following conditions correctly describes the manner of
determining the sex in the given example?
1. Homozygous sex chromosomes (XX) produce make in Drosophila
2. Homozygous sex chromosomes (ZZ) determine female sex in birds
3. XO type of sex chromosomes determine male sex in grasshopper
4. XO condition in humans as found in Turner Syndrome, determines female sex

Grade:upto college level

1 Answers

Jitender Pal
askIITians Faculty 365 Points
6 years ago
Sol: X/A ratio determines sex in Drosophila ; is heterogametic (ZW) in birds. In 'XO type' the 'O' determines maleness. Answer: (3)

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