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.
Course Matters. The average time it takes for a woman to jog a half-marathon is also dependent on the course. For example, it takes an average of 4 hours, 48 minutes for women to finish the Pike's Peak Ascent -- a 13.1-mile trek straight up Pike's Peak in Colorado Springs.Flatter courses obviously yield faster times.t's not quite the average, but it is a good representation of general performance. The median time for women running a half-marathon in 2012 was 2 hours, 19 minutes and 47 seconds. Since 2007, 2:19 and a varying number of seconds has been the median women's time.