Question

How many sugar-phosphate strands exist in each rna molecule?

Answer 1

The building block of both RNA and DNA of a Phosphate group attached to a 5-carbon sugar and nitrogenous base.One strand of DNA is made up of millions of nucleotides, nucleotides are made up of 5-carbon sugar, phosphate group, and 4 nitrogen bases. A 5-carbon sugar forms the central molecule in a nucleotide. RNA is a polymer with a ribose and phosphate backbone and four different bases; adenine, uracil, guanine, and cytosine (AUGC). RNA is a single-stranded chain of alternating phosphate and ribose units.

Answer 2

One.

Step-by-step explanation:

Two important nucleic acids are DNA and RNA. RNA is present as genetic material in case of some viruses only. RNA is more active than DNA and acts as catalyst.

RNA is made of nitrogenous bases, pentose sugar and the phosphate molecule. RNA is the single stranded molecule and contains only single RNA chain. The RNA can never exist in double stranded forms except in case of some viruses only.

Thus, the answer is one RNA strand.