Organisms And Population Question 15
Question: Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : During late childhood period, the body parts show rapid growth rate. Reason : Thyroxine and STH both become functional in addition to thymosine hormone.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: A
Solution:
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.
BETA
