Tizanidine is a short-acting muscle relaxer that's marketed under the brand name Zanaflex. It is used to treat muscle spasms caused by certain conditions such as multiple sclerosis, ALS, or spinal cord injury.It is also prescribed off-label for certain headache disorders, symptoms of fibromyalgia, and as a sleep aid.Tizanidine works by blocking nerve impulses that are sent to your brain.izanidine (Zanaflex) Interactions. Do not take tizanidine if you are also taking the antidepressant fluvoxamine (Luvox) or the antibiotic ciprofloxacin (Cipro). Let your doctor know all other medicines you are taking before he prescribes tizanidine.
Structure of the Double Helix. Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
DNA Molecule: DNA Unzip Transcript: The DNA double helix contains two sequences of nucleotide code letters than run along the molecule. Untwist the spiral and DNA can be seen as two parallel strands. That's why its sometimes called the double helix. Unzip the strands and you have two linear sequences of the letters A C G and T. The precise order of the letters along the molecule carries the coded instructions.