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.
Chromosomes are strings of genes. Mutations are changes in gene's DNA sequence. RNA is somewhat similar to DNA; they both are nucleic acids of nitrogen-containing bases joined by sugar-phosphate backbone. How ever structural and functional differences distinguish RNA from DNA. Structurally, RNA is a single-stranded where as DNA is double stranded. DNA has Thymine, where as RNA has Uracil.