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Get Answers to all your Questions
Select the incorrect statement:
- Option 1)
Male fruit fly is heterogametic.
- Option 2)
In male grasshopers,50% of sperms have no sex-chromosome.
- Option 3)
In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
- Option 4)
Human males have one of their sex-chromosome much shorter than the other.
Answers (1)
Basis of Sex Determination -
The cytological observations made in a number of insects lead to the development of the concept of genetic/chromosomal basis of sex.
- wherein
Experiments were performed by Henking (1891).
In fowls the sex is determined by the ovum and not sperm because in birds, the females are heterogametic (zw) and males are hemogametic (zz)
Option 1)
Male fruit fly is heterogametic.
Option 2)In male grasshopers,50% of sperms have no sex-chromosome.
Option 3)In domesticated fowls, sex of progeny depends on the type of sperm rather than egg.
Option 4)Human males have one of their sex-chromosome much shorter than the other.
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