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In a moss the sporophyte [2006]
  • a)
    produces gametes that give rise to the gametophyte
  • b)
    arises from a spore produced from the gametophyte
  • c)
    manufactures food for itself as well as for the gametophyte
  • d)
    is partially parasitic on the gametophyte
Correct answer is option 'D'. Can you explain this answer?
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In a moss the sporophyte [2006]a)produces gametes that give rise to th...
In moss main plant body is gametophyte &     sporophyte     is     meant     for     spore     dispersal     mainly. Hence it is called that the sporophyte is partially parasitic on gametophyte.
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In a moss the sporophyte [2006]a)produces gametes that give rise to th...
Explanation:

Mosses are nonvascular plants that reproduce by spores. They have a life cycle that alternates between the haploid gametophyte and the diploid sporophyte generations.

The gametophyte generation is the dominant phase in mosses, and it is the phase that carries out photosynthesis and produces gametes. The sporophyte generation, on the other hand, is short-lived, non-photosynthetic, and partially parasitic on the gametophyte.

The sporophyte in mosses arises from the fertilization of the egg cell by the sperm cell. The zygote develops into a sporophyte, which remains attached to the gametophyte. The sporophyte is partially dependent on the gametophyte for its nutrition, as it lacks the ability to carry out photosynthesis on its own.

The sporophyte in mosses is partially parasitic on the gametophyte, as it obtains water and nutrients from the gametophyte through a specialized structure called the foot. The sporophyte also produces spores that give rise to the next generation of gametophytes.

In summary, the correct answer is option D, as the sporophyte in mosses is partially parasitic on the gametophyte for its nutrition.
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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. Direction : In the above questions the Assertions (

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In a moss the sporophyte [2006]a)produces gametes that give rise to the gametophyteb)arises from a spore produced from the gametophytec)manufactures food for itself as well as for the gametophyted)is partially parasitic on the gametophyteCorrect answer is option 'D'. Can you explain this answer?
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In a moss the sporophyte [2006]a)produces gametes that give rise to the gametophyteb)arises from a spore produced from the gametophytec)manufactures food for itself as well as for the gametophyted)is partially parasitic on the gametophyteCorrect 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 In a moss the sporophyte [2006]a)produces gametes that give rise to the gametophyteb)arises from a spore produced from the gametophytec)manufactures food for itself as well as for the gametophyted)is partially parasitic on the gametophyteCorrect 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 In a moss the sporophyte [2006]a)produces gametes that give rise to the gametophyteb)arises from a spore produced from the gametophytec)manufactures food for itself as well as for the gametophyted)is partially parasitic on the gametophyteCorrect answer is option 'D'. Can you explain this answer?.
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