The modern working definition of a gene is a portion (or sequence) of DNA that codes for a known cellular function or process (e.g. the function make melanin molecules). A single 'gene' is most similar to a single 'word' in the English language.
Polar covalent bonds hold the actual hydrogen and oxygen atoms within the molecule of water but if you meant what holds water together as a liquid then that is called hydrogenâ¦ bonding between molecules, a type of dipole interaction.
If you liken the covalent bond between the oxygen and hydrogen to a stable marriage, the hydrogen bond has just good friends status. Water as a perfect example of hydrogen bonding. Notice that each water molecule can potentially form four hydrogen bonds with surrounding water molecules.There are exactly the right numbers of Î´+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding.ater as a perfect example of hydrogen bonding. Notice that each water molecule can potentially form four hydrogen bonds with surrounding water molecules. There are exactly the right numbers of Î´+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding.