question_answer

Which of the following statements about the structure of DNA is true or false?

(i) \[A\text{ +}T=G+C\]

(ii) \[A\text{ }/T=C/G\]

(iii) Hydrogen bonding provides stability to the double helical DNA in aqueous cytoplasm.

(iv) When separated, the two strands of a double helix are identical.

(v) Hydrophobic bonding provides stability to the double helical DNA in aqueous cytoplasm.

(vi) Each nucleotide pair contains two phosphate groups, two deoxyribose sugar molecules and two bases.

A)  (ii), (iii), (v) & (vi) are true; (i) & (iv) are false

B)  (i), (ii), (iii) & (v) are true; (iv) & (vi) are false

C)  (i), (ii), (iii) & (vi) are true; (iv) & (v) are false

D)  (iii), (v) & (vi) are true; (i), (ii) & (iv) are false