Select the incorrect statement.

1. A. (1) Human males have one of their sex-chromosome much shorter than the other
2. B. (2) Male fruit fly is heterogametic
3. C. (3) In male grasshoppers 50% of sperms have no sex-chromosome
4. D. (4) In domesticated fowls, sex of progeny depends on the type of sperm rather than egg

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