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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A): Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants.
Reason (R): The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively.

In the light of the above statements, choose the correct answer from the options given below:
  • a)
    Both (A) and (R) are True and (R) is the correct explanation of (A).
  • b)
    Both (A) and (R) are True but (R) is not the correct explanation of (A).
  • c)
    (A) is True but (R) is False.
  • d)
    (A) is False but (R) is True.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Given below are two statements: one is labelled as Assertion (A) and t...
Assertion (A) is true because heterospory (the production of two types of spores, microspores and megaspores) is an evolutionary step that led to the development of seeds in higher plants. Reason (R) is also true as it correctly describes the role of megaspores and microspores in heterosporous ferns. However, while (R) is true, it is not the direct explanation of how heterospory led to the evolution of seeds, which involves more complex evolutionary transitions beyond just the production of different spore types.
Topic in NCERT: Heterospory and Gametophyte Development
Line in NCERT: "The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. This event is a precursor to the seed habit considered an important step in evolution."
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):Assertion (A): Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants.Reason (R): The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively.In the light of the above statements, choose the correct answer from the options given below:a)Both (A) and (R) are True and (R) is the correct explanation of (A).b)Both (A) and (R) are True but (R) is not the correct explanation of (A).c)(A) is True but (R) is False.d)(A) is False but (R) is True.Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):Assertion (A): Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants.Reason (R): The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively.In the light of the above statements, choose the correct answer from the options given below:a)Both (A) and (R) are True and (R) is the correct explanation of (A).b)Both (A) and (R) are True but (R) is not the correct explanation of (A).c)(A) is True but (R) is False.d)(A) is False but (R) is True.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):Assertion (A): Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants.Reason (R): The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively.In the light of the above statements, choose the correct answer from the options given below:a)Both (A) and (R) are True and (R) is the correct explanation of (A).b)Both (A) and (R) are True but (R) is not the correct explanation of (A).c)(A) is True but (R) is False.d)(A) is False but (R) is True.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):Assertion (A): Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants.Reason (R): The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively.In the light of the above statements, choose the correct answer from the options given below:a)Both (A) and (R) are True and (R) is the correct explanation of (A).b)Both (A) and (R) are True but (R) is not the correct explanation of (A).c)(A) is True but (R) is False.d)(A) is False but (R) is True.Correct answer is option 'B'. 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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