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A typical anther is bilobed/four lobed....

A typical anther is bilobed/four lobed.

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**Step-by-Step Solution:** 1. **Understanding the Structure of the Anther:** - The anther is a part of the stamen, which is the male reproductive organ in flowering plants. It is crucial to identify the structure of the anther to determine if it is bilobed or four-lobed. 2. **Identifying the Parts of the Stamen:** - The stamen consists of two main parts: the filament (the stalk) and the anther (the terminal portion). The anther is where pollen grains are produced. 3. **Analyzing the Anther's Lobes:** - A typical anther is described as bilobed, meaning it has two distinct lobes. Each lobe is responsible for producing pollen. 4. **Counting the Thecae:** - Each lobe of the anther contains two thecae (pollen sacs). Therefore, with two lobes, the total number of thecae is four (2 thecae per lobe x 2 lobes = 4 thecae). 5. **Conclusion:** - Based on the structure and the number of lobes and thecae, a typical anther is bilobed, not four-lobed. **Final Answer:** A typical anther is bilobed. ---
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Assertion :- In majority of angiosperms a typical anther is bilobed. Reason :- lt's each lobe having two theca.

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Read the following text and answer the following questions on the basis of the same: A typical anther is bilobed. It is a tetragonal structure consisting of four microsporangia. These microsporangia form pollen sac which on maturity gets filled with a pollen grains. Pollen grains represent the male gametophytes, their cell wall is very hard. Pollen grains of many species cause severe allergies which cause various diseases in human beings. Assertion (A) : The innermost layer of microsporangium is called tapetum. Reason (R) : Tapetum nourishes the develop into pollen grains.

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A typical angiospermic anther is bilkobed and tet ragonal consisting of