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Which among the following is incorrect about Haplo-diplontic life cycle?
  • a)
    In this life cycle, both sporophytic phase and gametophytic phase have equal life time
  • b)
    Both sporophytic and gametophytic phases are multi-cellular and have independent existence
  • c)
    This kind of life cycle is exhibited by Pteridophytes and Bryophyte
  • d)
    Ectocarpus exhibits haplo-diplontic life cycle
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which among the following is incorrect about Haplo-diplontic life cycl...
In this life cycle both the sporophytic and gametophytic phase are multi-cellular and have independent existence. In this life cycle, the dominant phases differ. This kind of life cycle is exhibited by Pteridophytes and Bryophytes. 
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Most Upvoted Answer
Which among the following is incorrect about Haplo-diplontic life cycl...
Incorrect statement about Haplo-diplontic life cycle

Introduction

Haplo-diplontic life cycle is a type of life cycle exhibited by some plants, where both the haploid and diploid stages are multicellular and have independent existence.

Incorrect statement

Option D, which states that Ectocarpus exhibits haplo-diplontic life cycle, is incorrect.

Explanation

Ectocarpus is a brown alga that exhibits a diplontic life cycle. In this life cycle, the sporophyte is the dominant phase and produces haploid zoospores through meiosis. These zoospores grow into haploid gametophytes, which produce gametes through mitosis. Fertilization of the gametes results in the formation of a diploid zygote, which grows into the sporophyte.

Correct features of Haplo-diplontic life cycle


  • Both sporophytic phase and gametophytic phase have equal life time

  • Both sporophytic and gametophytic phases are multi-cellular and have independent existence

  • This kind of life cycle is exhibited by Pteridophytes and Bryophytes



Conclusion

In conclusion, the correct statement about Haplo-diplontic life cycle is that it is exhibited by Pteridophytes and Bryophytes, and both sporophytic and gametophytic phases are multicellular and have independent existence. The incorrect statement is that Ectocarpus exhibits haplo-diplontic life cycle.
Community Answer
Which among the following is incorrect about Haplo-diplontic life cycl...
The correct ans is c
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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. Direction : In the above questions the Assertions (

Gametophyte is a dominant phase in the life cycle of a bryophyte. It is more conspicuous, long living, independent, green and freely branched whereas, the sporophytic phase is short lived and dependent upon the gametophyte. The main plant body is haploid and bears sex organs i.e., antheridium and archegonium. Antheridium produces a large number of flagellated male gametes called antherozoids and archegonium is flask shaped with tubular neck and swollen venter. The gametophytic plant body of bryophytes is thalloid in liverworts whereas foliose in mosses. In liverworts, the thallus is differentiated into a dorsal photosynthetic and ventral storage region. In mosses, the gametophyte has two growth stages- protonema stage and leafy stage or gametophore.Q. Plants which produce spores and embryo but lack vascular tissue and seeds are

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Which among the following is incorrect about Haplo-diplontic life cycle?a)In this life cycle, both sporophytic phase and gametophytic phase have equal life timeb)Both sporophytic and gametophytic phases are multi-cellular and have independent existencec)This kind of life cycle is exhibited by Pteridophytes and Bryophyted)Ectocarpus exhibits haplo-diplontic life cycleCorrect answer is option 'D'. Can you explain this answer?
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Which among the following is incorrect about Haplo-diplontic life cycle?a)In this life cycle, both sporophytic phase and gametophytic phase have equal life timeb)Both sporophytic and gametophytic phases are multi-cellular and have independent existencec)This kind of life cycle is exhibited by Pteridophytes and Bryophyted)Ectocarpus exhibits haplo-diplontic life cycleCorrect 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 among the following is incorrect about Haplo-diplontic life cycle?a)In this life cycle, both sporophytic phase and gametophytic phase have equal life timeb)Both sporophytic and gametophytic phases are multi-cellular and have independent existencec)This kind of life cycle is exhibited by Pteridophytes and Bryophyted)Ectocarpus exhibits haplo-diplontic life cycleCorrect 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 among the following is incorrect about Haplo-diplontic life cycle?a)In this life cycle, both sporophytic phase and gametophytic phase have equal life timeb)Both sporophytic and gametophytic phases are multi-cellular and have independent existencec)This kind of life cycle is exhibited by Pteridophytes and Bryophyted)Ectocarpus exhibits haplo-diplontic life cycleCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which among the following is incorrect about Haplo-diplontic life cycle?a)In this life cycle, both sporophytic phase and gametophytic phase have equal life timeb)Both sporophytic and gametophytic phases are multi-cellular and have independent existencec)This kind of life cycle is exhibited by Pteridophytes and Bryophyted)Ectocarpus exhibits haplo-diplontic life cycleCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
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