Hairpins often form at palindromic sequences in single strands of either rna or dna. however, several key features differentiate the helical structure of an rna and a dna hairpin.

select the statements that describe the helical structure of an rna hairpin. a) the hairpin adopts a right-handed helix with a diameter of 20 å .b) the pentose in the hairpin adopts only the c-3\' endo pucker conformation. c) the hairpin adopts a right-handed helix with a diameter of 26 å .d) the hairpin contains g: c, a: u, and sometimes g: u base pairs. e) the pentose in the hairpin adopts either the c-2\' or the c-3\' endo pucker conformation.

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.