Trans-1,4-di-tert-butylcyclohexane exists in a normal chair conformation. Cis-1,4-di-tert-butylcyclohexane, however, adopts a twist-boat conformation. Draw both isomers andexplain why the cis isomer is more stable in a twist-boat conformation.
Nucleotides and Nucleic Acids Continued • Sometimes there are palindromic sequences in DNA-‐ they read the same forward and backward. o This allows you to get base pairing within a single strand and can cause hairpins (stem loops) • Cruciforms are weird structures and they involve both strands of DNA • Hoogsteen base pairs are when 3 strands are interacting with one another-‐ the double strand interacts with another strand from a different helix • Tetraplex DNA can form whenever there are four strands of DNA interacting together • All of these weird things are found in cells that are having some kind of issue! • RNA has a lot of important roles-‐ can be single stranded or double up on themselves to be double stranded o Double stranded RNA is very complex o Messenger RNA-‐ used when you want to copy a small section-‐ translated into protein o Ribosomal RNA
