Starting at 6 months, let kids occasionally drink from a sippy cup, so when you eventually do get rid of the bottle, your child will already be acquainted with the cup, suggests Corrigan. Let babies get used to a cup while they're in the tub. They can pour water out of it, drink from it, or even make a mess with it.
Answer: Both deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are made up of nucleotides which consist of three parts: 1  Nitrogenous Base. 2  Purines and pyrimidines are the two categories of nitrogenous bases. 3  Pentose Sugar. 4  In DNA, the sugar is 2'-deoxyribose. 5  Phosphate Group. 6  A single phosphate group is PO 4 3- .
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. DNA is comprised of two long strands that form a spiral called a double helix. Each of the two strands of the DNA molecule is a chain of smaller molecules.Each link in the chain is composed of one sugar molecule, one phosphate molecule and one nucleotide molecule.There are four types of nucleotide molecules, or bases, in DNA: adenine (A), thymine (T), guanine (G) and cytosine (C).NA. RNA, or ribonucleic acid, is part of a group of molecules known as the nucleic acids which, along with lipids, carbohydrates and proteins, comprise the major macromolecules essential for all known forms of life. Like DNA, RNA is made up of a long chain of components called nucleotides.