A virus is basically a tiny bundle of genetic materialâeither DNA or RNAâcarried in a shell called the viral coat, or capsid, which is made up of bits of protein called capsomeres. Some viruses have an additional layer around this coat called an envelope. That's basically all there is to viruses. virus is basically a tiny bundle of genetic materialâeither DNA or RNAâcarried in a shell called the viral coat, or capsid, which is made up of bits of protein called capsomeres. Some viruses have an additional layer around this coat called an envelope. That's basically all there is to viruses.
For all United EconomyÂ® tickets, Premier Gold members are eligible for two complimentary checked bags at 70 pounds (32 kg) each for travel between the U.S., Canada, Puerto Rico and the U.S. Virgin Islands.
Relevance. Rating Newest Oldest. Best Answer: Your carry-on luggage does not have a weight restriction, just as long as it can be lifted into the overhead compartment or stowed under your seat. For the measurement restrictions from United Airlines, check their website: http://www.united.com/page/article/0,686...Source(s): awesome sauce Â· 4 years ago.est Answer: Your carry-on luggage does not have a weight restriction, just as long as it can be lifted into the overhead compartment or stowed under your seat. For the measurement restrictions from United Airlines, check their website: http://www.united.com/page/article/0,686... Source(s):