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Plants complete their life cycle in two phase, saprophytic and gametophytic which occurs alternately called
- a)Alternation of diploid and haploid
- b)Change in phases
- c)Alternation of generation
- d)None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Plants complete their life cycle in two phase, saprophytic and gametop...
The plants complete their life cycle in two phase, diploid phase called saprophytes and haploid phase gemetophytes which occurs alternately is called alternation of generation.
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Most Upvoted Answer
Plants complete their life cycle in two phase, saprophytic and gametop...
Alternation of generation
The correct answer is option 'C', alternation of generation.
Explanation:
Life cycle of plants:
The life cycle of plants involves two distinct phases: the diploid phase and the haploid phase. These two phases occur alternately in a process known as alternation of generation.
1. Gametophytic phase:
- The gametophytic phase is the haploid phase of the plant life cycle.
- It begins with the production of haploid spores through meiosis in the sporophyte generation.
- These spores undergo mitosis to develop into multicellular haploid structures called gametophytes.
- The gametophytes produce gametes (sperm and eggs) through mitosis.
- Fertilization occurs when a sperm fertilizes an egg, resulting in the formation of a zygote.
2. Sporophytic phase:
- The sporophytic phase is the diploid phase of the plant life cycle.
- The zygote develops into a multicellular diploid structure called a sporophyte.
- The sporophyte undergoes meiosis to produce haploid spores, which are released and dispersed.
- These spores grow into new gametophytes and the cycle continues.
Key points:
- The plant life cycle involves alternation of generation, where the diploid sporophytic phase alternates with the haploid gametophytic phase.
- The sporophyte produces haploid spores through meiosis, which develop into gametophytes.
- Gametophytes produce gametes through mitosis, which fuse during fertilization to form a diploid zygote.
- The zygote develops into a sporophyte, and the cycle repeats.
Conclusion:
Plants complete their life cycle in two phases, the saprophytic and gametophytic phases, which occur alternately. This alternation of generation involves the transition between diploid and haploid phases and is a characteristic feature of plant life cycles.
The correct answer is option 'C', alternation of generation.
Explanation:
Life cycle of plants:
The life cycle of plants involves two distinct phases: the diploid phase and the haploid phase. These two phases occur alternately in a process known as alternation of generation.
1. Gametophytic phase:
- The gametophytic phase is the haploid phase of the plant life cycle.
- It begins with the production of haploid spores through meiosis in the sporophyte generation.
- These spores undergo mitosis to develop into multicellular haploid structures called gametophytes.
- The gametophytes produce gametes (sperm and eggs) through mitosis.
- Fertilization occurs when a sperm fertilizes an egg, resulting in the formation of a zygote.
2. Sporophytic phase:
- The sporophytic phase is the diploid phase of the plant life cycle.
- The zygote develops into a multicellular diploid structure called a sporophyte.
- The sporophyte undergoes meiosis to produce haploid spores, which are released and dispersed.
- These spores grow into new gametophytes and the cycle continues.
Key points:
- The plant life cycle involves alternation of generation, where the diploid sporophytic phase alternates with the haploid gametophytic phase.
- The sporophyte produces haploid spores through meiosis, which develop into gametophytes.
- Gametophytes produce gametes through mitosis, which fuse during fertilization to form a diploid zygote.
- The zygote develops into a sporophyte, and the cycle repeats.
Conclusion:
Plants complete their life cycle in two phases, the saprophytic and gametophytic phases, which occur alternately. This alternation of generation involves the transition between diploid and haploid phases and is a characteristic feature of plant life cycles.
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Plants complete their life cycle in two phase, saprophytic and gametophytic which occurs alternately calleda)Alternation of diploid and haploidb)Change in phasesc)Alternation of generationd)None of theseCorrect answer is option 'C'. Can you explain this answer?
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