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.
All I can give you is statistics. The peak time for finishing a half marathon is 1:42 for men, 1:58 for women (that is when most will cross the line). The average time to complete a half marathon is 1:50 for men and 2:05 for women and overall 1:54 for everyone. Winning times tend to be about 1:08 for men and 1:19 for women - there are faster and slower winning times of course. If you run faster than these averages, then that is a decent time.