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Which one is correct about heterosporous pteridophytes?
  • a)
    Microspore and megaspores develop into the male and the female gametophytes respectively.
  • b)
    The female gametophyte are retained on the parent sporophyte for a variable period.
  • c)
    The development of the zygote into the embryo takes place within the female gametophyte.
  • d)
    All
Correct answer is option 'D'. Can you explain this answer?
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Which one is correct about heterosporous pteridophytes?a)Microspore an...
Understanding Heterosporous Pteridophytes
Heterosporous pteridophytes are a unique group of plants that produce two distinct types of spores: microspores and megaspores. Each type plays a critical role in the life cycle of these plants.

Microspores and Megaspores
- Microspores develop into male gametophytes, which produce sperm.
- Megaspores develop into female gametophytes, which produce eggs.
This differentiation allows for sexual reproduction, enhancing genetic diversity.

Retention of Female Gametophyte
- The female gametophyte is often retained on the parent sporophyte for a variable period. This retention provides protection and nourishment to the developing gametophyte and ensures better chances of fertilization.

Development of Zygote
- The zygote formed after fertilization develops into an embryo within the female gametophyte. This process occurs inside the protective environment of the gametophyte, allowing for optimal conditions for growth.

Conclusion: All Statements are Correct
Given the explanations above:
- **Option A** is correct: Microspores and megaspores lead to male and female gametophytes, respectively.
- **Option B** is correct: Female gametophytes are retained on the sporophyte for varying lengths of time.
- **Option C** is correct: The zygote develops into an embryo within the female gametophyte.
Hence, the answer is Option D: All statements are correct. This knowledge is crucial for understanding the reproductive strategies of pteridophytes and their evolutionary advantages.
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Which one is correct about heterosporous pteridophytes?a)Microspore an...
The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. The female gametophytes in these plants are retained on the parent sporophytes for variable periods. The development of the zygotes into young embryos take place within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution
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In pteridophytes the sporophyte produces spores through meiosis. The spores are produced by the sporangia in the spore mother cells. These spores germinate to give rise to gametophytes. The gametophytes bear male and female sex organs. Water is required for transfer of antherozoids - the male gametes released from the male sex organ to the mouth of female sex organ. Fusion of male gamete with the egg result in the formation of zygote. Zygote thereafter produces a multicellular well-differentiated sporophyte. In majority of the pteridophytes all the spores are of similar kinds. However, some genera also produce two kinds of spores, macro (larg e) and micro (small) spores. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. In these plants, the female gametophytes are retained on the parent sporophytes for variable periods. The development of the zygotes develop into young embryos within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution.Q. In pteridophytes the dominant form of life is the_______.

In pteridophytes the sporophyte produces spores through meiosis. The spores are produced by the sporangia in the spore mother cells. These spores germinate to give rise to gametophytes. The gametophytes bear male and female sex organs. Water is required for transfer of antherozoids - the male gametes released from the male sex organ to the mouth of female sex organ. Fusion of male gamete with the egg result in the formation of zygote. Zygote thereafter produces a multicellular well-differentiated sporophyte. In majority of the pteridophytes all the spores are of similar kinds. However, some genera also produce two kinds of spores, macro (larg e) and micro (small) spores. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. In these plants, the female gametophytes are retained on the parent sporophytes for variable periods. The development of the zygotes develop into young embryos within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution.Q. Pteridophytes are __________ plants.

In pteridophytes the sporophyte produces spores through meiosis. The spores are produced by the sporangia in the spore mother cells. These spores germinate to give rise to gametophytes. The gametophytes bear male and female sex organs. Water is required for transfer of antherozoids - the male gametes released from the male sex organ to the mouth of female sex organ. Fusion of male gamete with the egg result in the formation of zygote. Zygote thereafter produces a multicellular well-differentiated sporophyte. In majority of the pteridophytes all the spores are of similar kinds. However, some genera also produce two kinds of spores, macro (larg e) and micro (small) spores. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. In these plants, the female gametophytes are retained on the parent sporophytes for variable periods. The development of the zygotes develop into young embryos within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution. Direction : In the above questions the Assertions (

In pteridophytes the sporophyte produces spores through meiosis. The spores are produced by the sporangia in the spore mother cells. These spores germinate to give rise to gametophytes. The gametophytes bear male and female sex organs. Water is required for transfer of antherozoids - the male gametes released from the male sex organ to the mouth of female sex organ. Fusion of male gamete with the egg result in the formation of zygote. Zygote thereafter produces a multicellular well-differentiated sporophyte. In majority of the pteridophytes all the spores are of similar kinds. However, some genera also produce two kinds of spores, macro (larg e) and micro (small) spores. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. In these plants, the female gametophytes are retained on the parent sporophytes for variable periods. The development of the zygotes develop into young embryos within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution.Q. The gametophytes are called as________.

In pteridophytes the sporophyte produces spores through meiosis. The spores are produced by the sporangia in the spore mother cells. These spores germinate to give rise to gametophytes. The gametophytes bear male and female sex organs. Water is required for transfer of antherozoids - the male gametes released from the male sex organ to the mouth of female sex organ. Fusion of male gamete with the egg result in the formation of zygote. Zygote thereafter produces a multicellular well-differentiated sporophyte. In majority of the pteridophytes all the spores are of similar kinds. However, some genera also produce two kinds of spores, macro (larg e) and micro (small) spores. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. In these plants, the female gametophytes are retained on the parent sporophytes for variable periods. The development of the zygotes develop into young embryos within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution. Q. In pteridophytes the male and female sex organ of the gametophytes are called ________, respectively.

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Which one is correct about heterosporous pteridophytes?a)Microspore and megaspores develop into the male and the female gametophytes respectively.b)The female gametophyte are retained on the parent sporophyte for a variable period.c)The development of the zygote into the embryo takes place within the female gametophyte.d)AllCorrect answer is option 'D'. Can you explain this answer?
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Which one is correct about heterosporous pteridophytes?a)Microspore and megaspores develop into the male and the female gametophytes respectively.b)The female gametophyte are retained on the parent sporophyte for a variable period.c)The development of the zygote into the embryo takes place within the female gametophyte.d)AllCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one is correct about heterosporous pteridophytes?a)Microspore and megaspores develop into the male and the female gametophytes respectively.b)The female gametophyte are retained on the parent sporophyte for a variable period.c)The development of the zygote into the embryo takes place within the female gametophyte.d)AllCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one is correct about heterosporous pteridophytes?a)Microspore and megaspores develop into the male and the female gametophytes respectively.b)The female gametophyte are retained on the parent sporophyte for a variable period.c)The development of the zygote into the embryo takes place within the female gametophyte.d)AllCorrect answer is option 'D'. Can you explain this answer?.
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