The Structure of DNA (The Double Helix) DNA is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).
(June 2012) (Learn how and when to remove this template message) Quarter marathon (QM) refers to either an exact race of a quarter of a marathon, or running for 10â15 kilometers (approx. 6.5â9 miles) without a rest. The former is held in many places around the world. Sisaket, a north-eastern province in Thailand, holds quarter marathons on the third Sunday of December every year.
Typically a quarter or semester refers to the number of weeks a course runs. There are usually four quarters in a school calendar year versus two semesters in a school calendar year. American College of Education terms run for 5 weeks. Most courses taken during a term were worth 4 quarter credits.With the conversion to semester credits, the course term will remain the same â 5 weeks â but the rigor and work load of the 4 quarter credit course increased and will now carry 3 semester credits.redit Conversion: The process by which American College of Education moved from the quarter credit system to the semester credit system. Quarter credits that were worth 4 credits were converted to 2.67 semester credits, and courses offered under the semester credit system are worth 3 semester credits.