Question

What is the most common form of RNA and DNA in nature?  

both double stranded helix for RNA and DNA, DNA - A for,

RNA – single-stranded, DNA – double-helix, B-form right-handed helix

both double stranded helix for RNA and DNA, DNA - B form

both single stranded helix for RNA and DNA

Answer 1

Ans: RNA single stranded, DNA double helix B form right handed helix.

Explanation-

RNA is single strand of nucleotides, having adenine(A), guanine (G), Uracil (U) and Cytosine ( C) nitrogenous bases.

DNA is double strands of nucleotides having adenine(A), guanine(G), thymine(T) and cytosine(C) nitrogenous bases. The bases of two strands are complementary to which other and stabilizes by H-bonds between them. Right handed B form of DNA is most common in nature.