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Kingdom protista includes :-
- a)Life cycle showing sporic meiosis
- b)Life cycle showing zygotic meiosis
- c)Both B and D
- d)Life cycle showing gametic meiosis
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life ...
Kingdom Protista includes:
Life cycle showing sporic meiosis:
- Sporic meiosis is a type of life cycle where the organism alternates between a diploid (sporophyte) and a haploid (gametophyte) phase.
- In this type of life cycle, the diploid sporophyte produces haploid spores through meiosis.
- The spores then develop into haploid gametophytes, which produce gametes through mitosis.
- The gametes fuse to form a diploid zygote, which grows into a new sporophyte.
- Examples of protists that exhibit a life cycle showing sporic meiosis include certain algae and mosses.
Life cycle showing zygotic meiosis:
- Zygotic meiosis is a type of life cycle where the organism spends most of its life cycle in the haploid phase.
- The diploid zygote undergoes meiosis immediately after fertilization, resulting in haploid cells.
- These haploid cells develop into mature organisms, which produce gametes through mitosis.
- The gametes fuse to form a diploid zygote, and the cycle continues.
- Examples of protists that exhibit a life cycle showing zygotic meiosis include certain types of algae, such as Chlamydomonas.
Both B and D:
- Protists in the Kingdom Protista can exhibit a life cycle showing both zygotic meiosis and gametic meiosis.
- In this type of life cycle, the organism alternates between a diploid (sporophyte) and a haploid (gametophyte) phase, similar to sporic meiosis.
- However, the main difference is that the haploid phase produces gametes directly through mitosis, rather than spores.
- Examples of protists that exhibit a life cycle showing both zygotic meiosis and gametic meiosis include certain types of algae, such as Ulva.
Life cycle showing gametic meiosis:
- Gametic meiosis is a type of life cycle where the organism spends most of its life cycle in the diploid phase.
- The diploid organism produces haploid gametes through meiosis.
- These gametes fuse to form a diploid zygote, which grows into a new organism.
- Examples of protists that exhibit a life cycle showing gametic meiosis include certain types of algae, such as Fucus.
Therefore, the correct answer is option C, which states that Kingdom Protista includes both life cycles showing zygotic meiosis (option B) and gametic meiosis (option D).
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Life cycle showing sporic meiosis:
- Sporic meiosis is a type of life cycle where the organism alternates between a diploid (sporophyte) and a haploid (gametophyte) phase.
- In this type of life cycle, the diploid sporophyte produces haploid spores through meiosis.
- The spores then develop into haploid gametophytes, which produce gametes through mitosis.
- The gametes fuse to form a diploid zygote, which grows into a new sporophyte.
- Examples of protists that exhibit a life cycle showing sporic meiosis include certain algae and mosses.
Life cycle showing zygotic meiosis:
- Zygotic meiosis is a type of life cycle where the organism spends most of its life cycle in the haploid phase.
- The diploid zygote undergoes meiosis immediately after fertilization, resulting in haploid cells.
- These haploid cells develop into mature organisms, which produce gametes through mitosis.
- The gametes fuse to form a diploid zygote, and the cycle continues.
- Examples of protists that exhibit a life cycle showing zygotic meiosis include certain types of algae, such as Chlamydomonas.
Both B and D:
- Protists in the Kingdom Protista can exhibit a life cycle showing both zygotic meiosis and gametic meiosis.
- In this type of life cycle, the organism alternates between a diploid (sporophyte) and a haploid (gametophyte) phase, similar to sporic meiosis.
- However, the main difference is that the haploid phase produces gametes directly through mitosis, rather than spores.
- Examples of protists that exhibit a life cycle showing both zygotic meiosis and gametic meiosis include certain types of algae, such as Ulva.
Life cycle showing gametic meiosis:
- Gametic meiosis is a type of life cycle where the organism spends most of its life cycle in the diploid phase.
- The diploid organism produces haploid gametes through meiosis.
- These gametes fuse to form a diploid zygote, which grows into a new organism.
- Examples of protists that exhibit a life cycle showing gametic meiosis include certain types of algae, such as Fucus.
Therefore, the correct answer is option C, which states that Kingdom Protista includes both life cycles showing zygotic meiosis (option B) and gametic meiosis (option D).
Most Upvoted Answer
Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life ...
Life cycle showing gametic meiosis
Organism spends most of its life time in 2n condition.
Gametes are n type and produced by meiosis.
Gametes fuse to form zygote and grows into a diploid organism.
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Community Answer
Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life ...
Kingdom Protista is a diverse group of eukaryotic organisms that are not plants, animals, or fungi. They are mostly unicellular but can also exist as colonies or multicellular organisms. Protists have a variety of reproductive strategies, including different types of meiosis. The correct answer to the question is option 'C' which states that Kingdom Protista includes life cycles showing both zygotic meiosis and sporic meiosis.
Explanation:
1. Zygotic Meiosis:
Zygotic meiosis is a type of life cycle in which the organism spends most of its life cycle in the haploid state, and the diploid stage is only brief. In protists, zygotic meiosis occurs when a haploid cell undergoes mitosis to produce gametes. These gametes fuse to form a diploid zygote, which then immediately undergoes meiosis to form haploid cells again. This type of life cycle is common in protists such as algae and some protozoans.
2. Sporic Meiosis:
Sporic meiosis is a type of life cycle in which the organism alternates between a haploid gametophyte stage and a diploid sporophyte stage. In protists, sporic meiosis occurs when the organism produces haploid spores through meiosis. These spores then germinate and grow into a multicellular haploid gametophyte, which produces gametes. The gametes fuse to form a diploid zygote, which then develops into a multicellular diploid sporophyte. The sporophyte undergoes meiosis to produce haploid spores again, completing the life cycle. This type of life cycle is common in protists such as algae and some fungi-like protists.
3. Both B and D:
Option 'C' is the correct answer because both zygotic meiosis (option 'B') and sporic meiosis (option 'D') are types of life cycles that can be found in Kingdom Protista. These different reproductive strategies allow protists to adapt to various environmental conditions and ensure genetic diversity within the population.
In conclusion, Kingdom Protista includes life cycles showing both zygotic meiosis and sporic meiosis. These different types of meiosis contribute to the diversity and reproductive strategies observed in the protist kingdom.
Explanation:
1. Zygotic Meiosis:
Zygotic meiosis is a type of life cycle in which the organism spends most of its life cycle in the haploid state, and the diploid stage is only brief. In protists, zygotic meiosis occurs when a haploid cell undergoes mitosis to produce gametes. These gametes fuse to form a diploid zygote, which then immediately undergoes meiosis to form haploid cells again. This type of life cycle is common in protists such as algae and some protozoans.
2. Sporic Meiosis:
Sporic meiosis is a type of life cycle in which the organism alternates between a haploid gametophyte stage and a diploid sporophyte stage. In protists, sporic meiosis occurs when the organism produces haploid spores through meiosis. These spores then germinate and grow into a multicellular haploid gametophyte, which produces gametes. The gametes fuse to form a diploid zygote, which then develops into a multicellular diploid sporophyte. The sporophyte undergoes meiosis to produce haploid spores again, completing the life cycle. This type of life cycle is common in protists such as algae and some fungi-like protists.
3. Both B and D:
Option 'C' is the correct answer because both zygotic meiosis (option 'B') and sporic meiosis (option 'D') are types of life cycles that can be found in Kingdom Protista. These different reproductive strategies allow protists to adapt to various environmental conditions and ensure genetic diversity within the population.
In conclusion, Kingdom Protista includes life cycles showing both zygotic meiosis and sporic meiosis. These different types of meiosis contribute to the diversity and reproductive strategies observed in the protist kingdom.
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Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life cycle showing zygotic meiosisc)Both B and Dd)Life cycle showing gametic meiosisCorrect answer is option 'C'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life cycle showing zygotic meiosisc)Both B and Dd)Life cycle showing gametic meiosisCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Kingdom protista includes :-a)Life cycle showing sporic meiosisb)Life cycle showing zygotic meiosisc)Both B and Dd)Life cycle showing gametic meiosisCorrect answer is option 'C'. Can you explain this answer?.
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