If your baby is very young the cold may linger for up to two weeks. Your baby will have from between six to 10 colds by the time he is two years old. And each cold is just as hard on you and your baby as the first one.If your baby is under three months old when he gets his cold you should contact your doctor.
A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.Nucleoside = Sugar + Base. Nucleotide = Sugar + Base + Phosphate.ugar + Base. A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. When phosphate group of nucleotide is removed by hydrolysis, the structure remaining is nucleoside. Sugar + Base + Phosphate.
The three subunits of a nucleotide are a nitrogenous base, a sugar and a phosphate group. Nucleotides are the building blocks of DNA and RNA molecules. One nitrogenous base, known as purine, is comprised of adenine and guanine. The other nitrogenous base is pyrimidine, which is cytosine and thymine. These bases combine to form DNA. RNA formation is slightly different, as uracil is substituted for thymine. Deoxyribose is the sugar subunit in a DNA molecule, while ribose is the sugar subunit of an RNA molecule. Nucleotides form nucleic acids, which are organic compounds that are found in every cell. These compounds are chemically linked to form DNA and RNA strands.