Study the given statements and select the option. (i) Nitrogen bases a – McqOptions

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1.	Study the given statements and select the option. (i) Nitrogen bases are open chain hydrocarbons. (ii) A nucleoside differ from nucleotide in not having phosphate. (iii) One turn of B-DNA has ten base pairs. (iv) Length of one turn of DNA is 3.4 A.
A.	(i) and (ii) are correct.
B.	(i) and (iv) are correct.
C.	(ii) and (iii) are incorrect.
D.	(i) and (iv) are incorrect.
Answer» E.

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