Question

Assertion : During late childhood period, the body parts show rapid growth rate.
Reason : Thyroxine and STH both become functional in addition to thymosine hormone.

• A. Both Assertion and Reason are true and Reason is a correct explanation of Assertion
• B. Both Assertion and Reason are true but Reason is not a correct explanation of Assertion
• C. Assertion is true but Reason is false
• D. Both Assertion and Reason are false
• E. Assertion is false but reason is true.

Answer 1

Answer: (A)

Both Assertion and Reason are true and Reason is a correct explanation of Assertion

Growth is rapid in pre-natal and puberty period (14-18 years.) It is slow in juvenile (5-14 years) and post adolescent (18-22 years) but is almost nil after the post adolescent period. During the late childhood period, growth rate becomes faster as long with thymosine, two more hormones start operating, thyroxin hormone of thyroid gland and somatotrophic hormone (STH) or growth hormone of anterior pituitary.

So, the correct answer is 'Both Assertion and Reason are true and Reason is a correct explanation of Assertion'.