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Question
In Bonellia, all larvae are genetically and cytologically similar. In this, worm male individuals live in the uterus of female. If a particular larva settle near proboscis of an adult female, it becomes a male individuals. If larva develops free in water it becomes
In Bonellia, all larvae are genetically and cytologically similar. In this, worm male individuals live in the uterus of female. If a particular larva settle near proboscis of an adult female, it becomes a male individuals. If larva develops free in water it becomes
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Solution
The correct option is B Female individual
Sex determination in Bonellia is governed by the presence or absence of bonellin, i.e., environmental factors. All larvae are genetically identical; if larva develops free in water it becomes adult female. The larvae that are exposed to bonellin in the skin of an adult female develop into males and are present in uterus of female. This makes option A wrong. Detachment of partly developed male from female body leads to its development into an intersex which makes option C wrong. Hence, option B is correct answer.
Sex determination in Bonellia is governed by the presence or absence of bonellin, i.e., environmental factors. All larvae are genetically identical; if larva develops free in water it becomes adult female. The larvae that are exposed to bonellin in the skin of an adult female develop into males and are present in uterus of female. This makes option A wrong. Detachment of partly developed male from female body leads to its development into an intersex which makes option C wrong. Hence, option B is correct answer.
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