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Question
In Pinus, male cone bears a large number of
In Pinus, male cone bears a large number of
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Solution
The correct option is B Micro-sporophylls
Pinus is a monoecious plant that carry both male and female cone on the same plant but on different branches. The male cone (staminate /microsporangiate strobilus) bears spirally arranged microsporophylls on the central axis. Each microsporophyll carries two microsporangia on the underside. Option C is correct. The female cone (ovulate strobilus /megasporangiate strobilus) bears two types of scales, the bract and ovuliferous scales, which are together termed as megasporophylls. This makes option D incorrect. Option A is incorrect as ligule is a vegetative not reproductive structure. Anther is a broad knob part of stamen that contains two long and cylindrical microsporangia in its lobes. It is found in flowering plants only, which makes option B incorrectSo, the correct answer is 'Micro-sporophylls'
Pinus is a monoecious plant that carry both male and female cone on the same plant but on different branches. The male cone (staminate /microsporangiate strobilus) bears spirally arranged microsporophylls on the central axis. Each microsporophyll carries two microsporangia on the underside. Option C is correct.
The female cone (ovulate strobilus /megasporangiate strobilus) bears two types of scales, the bract and ovuliferous scales, which are together termed as megasporophylls. This makes option D incorrect.
Option A is incorrect as ligule is a vegetative not reproductive structure. Anther is a broad knob part of stamen that contains two long and cylindrical microsporangia in its lobes. It is found in flowering plants only, which makes option B incorrect
So, the correct answer is 'Micro-sporophylls'
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