Which of the following clotting factors is not synthesized by the liver?

$A$ blood test of a person suspected of having anemia shows large,immature,nucleated,hemoglobin-deficient erythrocytes. Which of the following substances should be included in their diet to alleviate these symptoms?

Assertion: $WBCs$ accumulate at the site of wounds by diapedesis.
Reason: It is the squeezing of leucocytes from the endothelium.

In mammalian $RBC$,the percentage of haemoglobin is

An abnormal rise in the number of $R.B.C.$ is called:

Individuals with blood groups ..... and ..... are known as universal recipient and universal donor,respectively.