The DNA bases are adenine, guanine, thymine, and cytosine. In RNA, Thymine is replaced by Uracil.nswer by Pieman3113. Confidence votes 4. The DNA bases are adenine, guanine, thymine, and cytosine. In RNA, Thymine is replaced by Uracil. Adenine and guanine are known as purines and cytosine and thymine are known as pyrimidines.
Airmail is a mail transport service branded and sold on the basis of at least one leg of its journey being by air. Airmail items typically arrive more quickly than surface mail, and usually cost more to send. Airmail may be the only option for sending mail to some destinations, such as overseas, if the mail cannot wait the time it would take to arrive by ship, sometimes weeks. The Universal Postal Union adopted comprehensive rules for airmail at its 1929 Postal Union Congress in London. Since th
Created: February 21, 2013 17:30 | Updated: January 24, 2017 18:12. Priority Mail Express (Formerly Express Mail) is the quickest USPS mail service with overnight delivery to most US locations. It turns out shipping a package isnât too different from booking a vacation: if you want it to get there quick, air is your best bet.