Q. As Human and Drosophila both follow XY system of sex determination, a male in human is always a male in drosophila and same is for female.

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Q. Which of the following is true for Drosophila sex determination?

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Q. Which of these genes is responsible for the development of sex of Drosophila?

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Q. The Sxl gene is turned ____________ by a ratio of _____________for X:A.

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Q. Sxl directly affects _____________

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Q. Which of the following is a default pathway in Drosophila?

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Q. Which of the following will give a normal female Drosophila?

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Q. Genetic combination of AA : XYY in drosophila gives a _________

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Q. The composition AA: XXX will give a viable female in Drosophila.

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Q. Which of the following is the correct pathway for developing female characters?

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Q. The XO system of sex determination is found in ______________

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Q. In case of XO system if an organism has AA+XO it will be a _______

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Q. In XO system a male has a mother but not a _____________

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Q. We will see ZZ/ZW system in chicken; state true or false.

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Q. In ZZ/ZW system which of the following is true?

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Q. In ZZ/ZW system if there is a recessive Z allele carrying a distinct phenotype, it will have greater probability of expression in ____________

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Q. Genic system of sex determination is seen in _______________

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Q. In bees the males are produced by _________

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Q. Parthenogenesis can also take place in human beings.

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Q. Which of the following is true for a genic mode of sex determination?

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