I think the answer is A.) fats
Covalent bonds form by sharing of electrons and ionic bonds are formed by donating electrons.
<h3><u>Explanation:</u></h3>
Covalent bonds are formed between less electronegative and less electropositive atoms of elements. These atoms are unable to donate the electrons or accept them fully because of their affinity towards these electrons.
Ionic bonds are formed between the more electronegative and electropositive atoms of elements. They fully donate or accept the electrons to fulfill their octet. Thus, they are only attracted towards each other by means of electrostatic force of attraction. There’s no actual bonds present between the atoms unlike those in the covalent atoms.
<span>What ensures that DNA molecule is replicated
exactly as its original strand is with the ability of the DNA to make way and
let the base pairs match with each base. This enables them to form the same
strands so that it is identical and not different with the original strand.</span>
Answer:
The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group.
Explanation: