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
USPS Priority Mail. United States Postal Service (USPS) is an independent Agency of the United States Government. Over the years the agency has garnered lots of reputation for being one of the best postal services in the world. USPS provides varied postal services all over the United States.