So he had a card made showing charity to the poor, and the Christmas card was born. Subsequent postcards produced by publishers from the 1870s until World War I featured everything from nativity scenes to families around the Christmas tree. Early cards were lithographed and often adorned with silk, lace, and satin. Between 1898... Continue Reading
DNA is more stable than RNA. DNA is double-stranded and forms a double helix. RNA is usually single-stranded and folds back on itself to form stem-loop structures. RNA has 2' â¦ -OH group that can participate in intramolecular reactions, facilitating hydrolysis.
Answers. 1  The sugar-phosphate skeleton RNA has Ribose as it component sugar, while DNA has 2-deoxyribose, ribose where one OH group as been replaced with an H. It may sound like a small change, but it causes double stranded RNA to be less stable than DNA and also to be shaped as a different helix. Also the base thymine in DNA is replaced by Uracil in RNA. And of course in cell most RNA is one stranded, while DNA is two. But some viruses have double stranded RNA.