Q26. Which of the following is caused due to substitution of glutamic acid to valine on 6th position of ẞ-globin chain o

Q22. Down's syndrome is a result of gain of extra copy of chromosome number: (a) 21 (b) 20 (c) 19 (d) 22

Q33. Which of the following is not a stop codon? (a) UGA (b) UAA (c) AUG (d) UAG

Q39. If a man with blood group A marries a woman with blood group AB. Which of the following blood group will never be f