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In pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called ______.

  • a)
    Protonema

  • b)
    Prothallus

  • c)
    Archegonia

  • d)
    Ovule

Correct answer is option 'B'. Can you explain this answer?
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In pteridophytes, spores germinate to give rise to inconspicuous, smal...
In pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called “Prothallus”.
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In pteridophytes, spores germinate to give rise to inconspicuous, smal...
Pteridophytes

Pteridophytes are a group of vascular plants that reproduce via spores, rather than seeds.

Gametophyte

The gametophyte is the haploid, gamete-producing phase of the plant life cycle. In pteridophytes, the spores germinate to give rise to a multicellular, free-living photosynthetic gametophyte.

Prothallus

The gametophyte in pteridophytes is called a prothallus. It is small, inconspicuous, and thalloid in shape, which means that it is flat and leaf-like, lacking true roots, stems, or leaves.

Function

The prothallus is responsible for producing gametes, which will eventually fuse to form the diploid sporophyte. The gametes are produced in specialized structures called archegonia (female gametangia) and antheridia (male gametangia).

Conclusion

Therefore, the correct answer is option B, prothallus, which is the multicellular, free-living photosynthetic gametophyte in pteridophytes.
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In pteridophytes, spores germinate to give rise to inconspicuous, smal...
The spores in pteridophytes germinate to give rise to inconspicuous, small but multicellular, free-living, mostly photosynthetic thalloid gametophytes called prothallus.
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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. The gametophytes are called as________.

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In pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called ______.a)Protonemab)Prothallusc)Archegoniad)OvuleCorrect answer is option 'B'. Can you explain this answer?
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In pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called ______.a)Protonemab)Prothallusc)Archegoniad)OvuleCorrect answer is option 'B'. 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 pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called ______.a)Protonemab)Prothallusc)Archegoniad)OvuleCorrect answer is option 'B'. 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 pteridophytes, spores germinate to give rise to inconspicuous, small multicellular, free-living photosynthetic, thalloid gametophyte called ______.a)Protonemab)Prothallusc)Archegoniad)OvuleCorrect answer is option 'B'. Can you explain this answer?.
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