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In flowering plants, a mature male gametophyte is derived from a pollen mother cell by
Options
(a) two mitotic divisions
(b) one meiotic and two mitotic divisions
(c) three mitotic divisions
(d) a singe meiotic division
Correct Answer:
one meiotic and two mitotic divisions
Explanation:
Each pollen mother cell, by a meiotic division, gives rise to a group of four haploid microspores. During gametogenesis (mitosis) the pollen nucleus divides to form a generative cell and a vegetative cell. The former undergoes another mitosis to form two sperms (the male gametes).
Related Questions: - The second maturation division of the mammalian ovum occurs
- Which of the following communities is more vulnerable to invasion by outside animals
- The positive evidence of aquatic ancestory of bryophytes is indicated by
- In angiosperms each microspore mother cell undergoing meiosis gives rise to a
- The fruit is chambered, developed from inferior ovary and has seeds with succulent testa
Topics: Reproduction In Organisms and Plants
(129)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The second maturation division of the mammalian ovum occurs
- Which of the following communities is more vulnerable to invasion by outside animals
- The positive evidence of aquatic ancestory of bryophytes is indicated by
- In angiosperms each microspore mother cell undergoing meiosis gives rise to a
- The fruit is chambered, developed from inferior ovary and has seeds with succulent testa
Topics: Reproduction In Organisms and Plants (129)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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