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Which among the following is an incorrect statement?
  • a)
    Zygote is formed by fusion of male and female gametes and is diploid in nature
  • b)
    Zygote undergoes reduction division to form a structure called sporophyte
  • c)
    Sporophyte undergoes meiosis to produce spores
  • d)
    Spores germinate to form new thallus
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which among the following is an incorrect statement?a)Zygote is formed...
Statement B: Zygote undergoes reduction division to form a structure called sporophyte

The incorrect statement among the given options is B. This statement is incorrect because the zygote does not undergo reduction division to form a structure called sporophyte. Let's understand why.

Explanation:

1. Zygote Formation:
Zygote is formed by the fusion of male and female gametes during sexual reproduction. The male gamete (sperm) fertilizes the female gamete (egg) to form a zygote. The zygote is diploid in nature because it contains two sets of chromosomes - one set from each parent.

2. Sporophyte Formation:
After the formation of the zygote, it undergoes a series of mitotic divisions, resulting in the formation of a multicellular structure called the sporophyte. The sporophyte is a diploid (2n) generation in the life cycle of plants. It is the dominant phase in vascular plants (ferns, gymnosperms, and angiosperms). The sporophyte produces spores through meiosis.

3. Spore Formation:
The diploid sporophyte undergoes meiosis to produce haploid spores. Meiosis is a type of cell division that results in the formation of four haploid cells, each containing only one set of chromosomes. These spores are dispersed from the sporophyte and have the potential to develop into a new individual.

4. Germination of Spores:
The spores germinate under favorable conditions and grow into a gametophyte, which is a haploid (n) generation in the plant life cycle. The gametophyte produces gametes (sperm and egg) through mitotic divisions.

5. Fertilization:
The male gametes (sperm) produced by the gametophyte fertilize the female gametes (egg) to form a zygote, thus completing the life cycle.

In summary, the correct sequence of events in the plant life cycle is as follows:
Zygote → Sporophyte (via mitotic divisions) → Spores (via meiosis) → Gametophyte (via germination of spores) → Gametes (via mitotic divisions) → Fertilization → Zygote

Therefore, option B is incorrect as zygote does not undergo reduction division to form a structure called sporophyte.
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Community Answer
Which among the following is an incorrect statement?a)Zygote is formed...
Zygote is formed by fusion of male and female gametes and is diploid in nature. Zygote doesn’t undergo reduction division immediately after fusion. They instead form a structure called as sporophyte. Sporophyte undergoes meiosis to produce spores. Spores germinate to form new thallus.
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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 (

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.

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Which among the following is an incorrect statement?a)Zygote is formed by fusion of male and female gametes and is diploid in natureb)Zygote undergoes reduction division to form a structure called sporophytec)Sporophyte undergoes meiosis to produce sporesd)Spores germinate to form new thallusCorrect answer is option 'B'. Can you explain this answer?
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Which among the following is an incorrect statement?a)Zygote is formed by fusion of male and female gametes and is diploid in natureb)Zygote undergoes reduction division to form a structure called sporophytec)Sporophyte undergoes meiosis to produce sporesd)Spores germinate to form new thallusCorrect 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 Which among the following is an incorrect statement?a)Zygote is formed by fusion of male and female gametes and is diploid in natureb)Zygote undergoes reduction division to form a structure called sporophytec)Sporophyte undergoes meiosis to produce sporesd)Spores germinate to form new thallusCorrect 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 Which among the following is an incorrect statement?a)Zygote is formed by fusion of male and female gametes and is diploid in natureb)Zygote undergoes reduction division to form a structure called sporophytec)Sporophyte undergoes meiosis to produce sporesd)Spores germinate to form new thallusCorrect answer is option 'B'. Can you explain this answer?.
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