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.

Question 14 (5 points)all organisms on earth require energy to live. which statement best describes how ferns, people, and flatworms obtain energy? a. ferns produce atp during photosynthesis, while flatworms and people produce atpduring digestion. b.ferns and flatworms absorb food from their surroundings, while people must digest foodfound in their surroundings. c.producers such as ferns do not require a source of energy, while flatworms and humansmust consume food for energy. d.ferns produce glucose that can be broken down by cellular respiration, while flatwormsand people digest foods containing glucose for use in cellular respiration.