Which of the following statements are correct ? a. Deficiency of vitamin K results in increased blood clotting time. b. The sources of vitamin B₂ are milk and liver c. Hexapeptide has six peptide bonds d. Improper functioning of adrenal cortex results in hypoglycemia.

Step-by-step solution

- a. Deficiency of vitamin K results in increased blood clotting time. This statement is correct. Vitamin K is essential for the synthesis of several proteins involved in blood coagulation. A deficiency of this vitamin impairs the body's ability to form blood clots, leading to prolonged clotting time and an increased risk of bleeding. - b. The sources of vitamin (B₂ ) are milk and liver. This statement is correct. Vitamin (B₂ ), also known as riboflavin, is found in a variety of foods, with rich sources including d