The haemoglobin content per $100 \ ml$ of blood of a normal healthy human adult is

What is the primary product of hemoglobin degradation?

What does the hematocrit value indicate?

Mature erythrocytes are enucleated in the following animals $EXCEPT$:
i. Rat
ii. Monkey
iii. Llama
iv. Camel
v. Elephant
Choose the correct answer from the options given below.

$Rh$ factor may be responsible for

If a child has blood group $O$,and the father has blood group $B$,what must the father's genotype $NOT$ be?