Question

Identify the labelled parts.

• A. 23 pairs of chromosomes.
• B. 22 pairs of chromosomes.
• C. 48 chromosomes.
• D. 40 chromosomes.

Answer 1

The correct option is C

48 chromosomes.

The hypothalamus regulates all the secretions of the master gland pituitary, which in turn regulates the secretions of all other endocrine glands. In the given flow chart, the hypothalamus secretes growth hormone - releasing hormone, which stimulates the pituitary gland to release growth hormone (GH). This hormone is responsible for increasing height by causing elongation of limbs in both boys and girls.