While it is relatively easy to define what a hurricane or earthquake is, defining a drought is more subjective. Droughts do not have the immediate effects of floods, but sustained droughts can cause economic stress throughout an area. The word drought has various meanings, depending on a person's perspective.
For the software package, see Partition function for Interacting RNAs. Piwi-interacting RNA (piRNA) is the largest class of small non-coding RNA molecules expressed in animal cells. piRNAs form RNA-protein complexes through interactions with piwi proteins.
DNA is usually double stranded and most cellular RNA is single stranded. 1)In DNA the pentose sugar is deoxyribose.Whereas in RNA the pentose sugar is ribose.2)In DNA the common organic bases are adenine,guanine,cytosine and thymine.Whereas in RNA the common organic bases are adenine,guanine,cytosine and uracil.NA is usually double stranded and most cellular RNA is single stranded. 1)In DNA the pentose sugar is deoxyribose.Whereas in RNA the pentose sugar is ribose.