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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.
Reason : At puberty, there is decreased secretion of testosterone in boys.
  • a)
    Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
  • b)
    Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
  • c)
    Assertion (A) is true but reason (R) is false.
  • d)
    Assertion (A) is false but reason (R) is true.
  • e)
    Both Assertion and Reason are false.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Directions: In the following questions, a statement of assertion (A) ...
Puberty in boys is regulated by male sex hormone called testosterone, which are secreted by testes. In puberty, secondary sexual characteristics like growth of hair on face, chest, broadening of shoulders and deepening of voice occurs.
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Most Upvoted Answer
Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): At puberty, in boys, the voice begins to crack and thick hair grows on the face.
Reason (R): At puberty, there is decreased secretion of testosterone in boys.

The correct answer is option 'C' - Assertion (A) is true but reason (R) is false.

Explanation:
At puberty, both boys and girls undergo significant physical and hormonal changes. However, the specific changes that occur in boys are different from those in girls.

Assertion Explanation:
During puberty, boys experience a growth spurt and their voices begin to change. This is because the larynx (voice box) in boys grows larger, causing the vocal cords to lengthen and thicken. As a result, the voice becomes deeper and may crack or break during this transitional period. Additionally, boys start to develop facial hair, including a thicker growth on the face, known as a beard.

Reason Explanation:
The reason given in the statement is incorrect. At puberty, there is actually an increase, not a decrease, in the secretion of testosterone in boys. Testosterone is the primary male sex hormone responsible for the development of secondary sexual characteristics, such as deepening of the voice, growth of facial and body hair, and muscle development.

Conclusion:
Therefore, while the assertion is true and supported by the changes that occur during puberty in boys, the reason given is false. The correct reason for the changes described in the assertion is the increased secretion of testosterone during puberty, not the decreased secretion as stated in the reason.
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Community Answer
Directions: In the following questions, a statement of assertion (A) ...
A
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer?
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : At puberty, in boys, the voice begins to crack and thick hair grows on the face.Reason : At puberty, there is decreased secretion of testosterone in boys.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.e)Both Assertion and Reason are false.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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