Questions: Microsporogenesis in pines occurs within an integument involves mitosis of the tapetum within an anther results in the release of microspores from ovules involves diploid microsporocyte undergoing meiosis

Microsporogenesis in pines occurs within an integument involves mitosis of the tapetum within an anther results in the release of microspores from ovules involves diploid microsporocyte undergoing meiosis
Transcript text: Microsporogenesis in pines occurs within an integument involves mitosis of the tapetum within an anther results in the release of microspores from ovules involves diploid microsporocyte undergoing meiosis
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Solution

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The correct answer is the last one: involves diploid microsporocyte undergoing meiosis.

Explanation for each option:

  1. Occurs within an integument: This is incorrect. Microsporogenesis in pines occurs within the microsporangia, which are located in the male cones, not within an integument. The integument is part of the ovule structure in seed plants, related to the female reproductive process.

  2. Involves mitosis of the tapetum within an anther: This is incorrect. While the tapetum is a layer of cells that provides nutrients to developing pollen grains, microsporogenesis itself involves meiosis, not mitosis. Additionally, pines do not have anthers; they have microsporangia in male cones.

  3. Results in the release of microspores from ovules: This is incorrect. Microsporogenesis results in the formation of microspores within the microsporangia of male cones, not ovules. Ovules are part of the female reproductive structure.

  4. Involves diploid microsporocyte undergoing meiosis: This is correct. During microsporogenesis, diploid microsporocytes undergo meiosis to produce haploid microspores, which will eventually develop into pollen grains.

In summary, microsporogenesis in pines involves the diploid microsporocyte undergoing meiosis to produce microspores.

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