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.

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.