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Which of the following statement is correct ?
- a)Ovules are not enclosed by ovary wall ingymnosperms
- b)Selaginella is heterosporous, while Salvinia ishomosporous
- c)Horsetails are gymnosperms
- d)Stems are usually unbranched in both Cycasand Cedrus
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Which of the following statement is correct ?a)Ovules are not enclosed...
Ovules are not enclosed by ovary wall in gymnosperms.
Explanation:
- Ovules are the structure that contains the female gametophyte and eventually develops into a seed after fertilization in plants.
- Gymnosperms are a group of plants that produce naked seeds without any protective ovary wall.
- Gymnosperms include plants like conifers, cycads, ginkgo, and gnetophytes.
- In gymnosperms, the ovules are not enclosed by an ovary wall like in angiosperms.
- Instead, the ovules are usually borne on the surface of leaf-like structures called megasporophylls, which are grouped together to form cones or strobili.
- The male gametophyte is produced in a separate structure called microsporangium, which is also borne on a cone or strobilus.
- The pollen grains produced by the microsporangium are carried by wind or insects to the female cones, where they germinate and fertilize the ovules.
- After fertilization, the ovules develop into seeds that are not enclosed by any fruit or ovary wall.
Therefore, the correct statement is option 'A': Ovules are not enclosed by ovary wall in gymnosperms.
Explanation:
- Ovules are the structure that contains the female gametophyte and eventually develops into a seed after fertilization in plants.
- Gymnosperms are a group of plants that produce naked seeds without any protective ovary wall.
- Gymnosperms include plants like conifers, cycads, ginkgo, and gnetophytes.
- In gymnosperms, the ovules are not enclosed by an ovary wall like in angiosperms.
- Instead, the ovules are usually borne on the surface of leaf-like structures called megasporophylls, which are grouped together to form cones or strobili.
- The male gametophyte is produced in a separate structure called microsporangium, which is also borne on a cone or strobilus.
- The pollen grains produced by the microsporangium are carried by wind or insects to the female cones, where they germinate and fertilize the ovules.
- After fertilization, the ovules develop into seeds that are not enclosed by any fruit or ovary wall.
Therefore, the correct statement is option 'A': Ovules are not enclosed by ovary wall in gymnosperms.
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Community Answer
Which of the following statement is correct ?a)Ovules are not enclosed...
Both selaginella and salvinia are heterosporous.horsetails or equisetum is a pteridophyte stem is unbranched only in cycas not cedrus. So ,the correct ans has to be op A
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Which of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. Can you explain this answer?
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Which of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. 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 of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. 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 of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. Can you explain this answer?.
Which of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. 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 of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. 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 of the following statement is correct ?a)Ovules are not enclosed by ovary wall ingymnospermsb)Selaginella is heterosporous, while Salvinia ishomosporousc)Horsetails are gymnospermsd)Stems are usually unbranched in both Cycasand CedrusCorrect answer is option 'A'. Can you explain this answer?.
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