If the child has O blood group – I° I° If father has B blood group it is either – I^B I^B or I^B I^o But if father has IB IB then child cannot have I° I°, so father must have I^B I^o.

Correct Option: B

If the child has O blood group – I° I° If father has B blood group it is either – I^B I^B or I^B I^o But if father has IB IB then child cannot have I° I°, so father must have I^B I^o.

Neutrophils are a type of Leucocyte (WBCs) that can take all types of stain (Acidic-Basic-Neutral). It is most abundant (60-70% of total WBCs) and most active type of WBCs i.e. they are the most actively phagocytic in nature.

Correct Option: D

Neutrophils are a type of Leucocyte (WBCs) that can take all types of stain (Acidic-Basic-Neutral). It is most abundant (60-70% of total WBCs) and most active type of WBCs i.e. they are the most actively phagocytic in nature.

Blood group A – Antigen-A & Antibody ‘b’ or Anti A or a,
Blood group B – Antigen-B & antibody a or Anti B or b
Blood group AB – Antigen-A & B and no antibody.
Blood group O – No antigen & Antibodies a & b both.

Correct Option: B

Blood group A – Antigen-A & Antibody ‘b’ or Anti A or a,
Blood group B – Antigen-B & antibody a or Anti B or b
Blood group AB – Antigen-A & B and no antibody.
Blood group O – No antigen & Antibodies a & b both.

A has antigen A & antibody b so it can have the same blood group. O has no antigen & antibodies a & b so it is called universal donor.

Correct Option: C

A has antigen A & antibody b so it can have the same blood group. O has no antigen & antibodies a & b so it is called universal donor.

In foetus; liver, spleen, bone marrow, lymph nodes & thymus are the haemopoietic organs (blood forming). In adults most of the blood corpuscles form in the peripheral region of red bone marrow in long bones.

Correct Option: B

In foetus; liver, spleen, bone marrow, lymph nodes & thymus are the haemopoietic organs (blood forming). In adults most of the blood corpuscles form in the peripheral region of red bone marrow in long bones.