A covalent bond is one of the types of the chemical bond which is formed when the electrons are shared between the two atoms.
Based on the magnitude of the sharing of electrons between atoms two types of covalent bonds are formed which are: pure covalent bond in which the electrons are shared equally whereas the polar covalent bond in which the electrons are shared unequally between two atoms.
Since there is a type of covalent bond formed which has unequal sharing of electrons called polar covalent bond therefore true is the correct answer.
I'd say that the <span>DNA is found in the nucleus of a cell. and also </span>Cells contain protein molecules.These are True.These were know before <span>Franklin and Wilkins conducted their studies of DNA</span>