General Science – Biology MCQs

21. Late Hargobind Khorana had received Nobel Prize in physiology in 1968, for work on which among the following?

(A) Mechanisms of the action of hormones
(B) Chemical Structure of antibodies
(C) Interpretation of the genetic code
(D) Structural and functional organization of the cell

Correct Answer: (C) Interpretation of the genetic code

22. A person with “Bombay Blood group” can receive blood from a person who is from____?

(A) A Group or B Group
(B) AB Group
(C) O Group
(D) None of them

Correct Answer: (D) None of them

Answer Explanation:

Bombay Blood Group is an extremely rare ABO group, called so because it was first discovered among some people in Bombay. Their red cells lack ABH antigens and their sera contain anti-A and anti-B and anti-H. The anti-H would not be detected in the ABO group but would be detectable in pretransfusion tests. People who have Bombay phenotype can donate to any member of the ABO blood group system (unless some other blood factor gene, such as Rhesus, is incompatible), but they cannot receive any member of the ABO blood group system`s blood (which always contains one or more of A and B and H antigens), but only from other people who have Bombay phenotype

23. What is the average life of the Red Blood corpuscles?

(A) 100-120 days
(B) 120-140 days
(C) 80-95 days
(D) 70-85 days

Correct Answer: (A) 100-120 days

24. “Daps one” immunotherapy is related to which among the following diseases?

(A) AIDS
(B) Tuberculosis
(C) Leprosy
(D) Malaria

Correct Answer: (C) Leprosy

25. What is PRINT (Particle Replication in Non-wetting Templates) Technology ?

(A) It’s a technology related to genetic engineering and refers to duplication of the DNA codes
(B) It’s a technology related to climate change and refers to a new technique of combating air pollution
(C) It’s a new technology related to synthesis of artificial blood
(D) None of them

Correct Answer: (C) It’s a new technology related to synthesis of artificial blood

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