Chemical bonds.
Chemical bonds hold the atoms of a molecule together thereby forming covalent bonds, when two atoms share electrons.
Do u have answer choices with this question?
The answer is B. Think of it this way. You always give insulin with a meal cause they need to raise their blood sugar. Glucagon is given when the blood sugar is too high and needs to come down.
Dna, is all in the Dna. The Dna is made of adenine, thymine, guanine and cytosine which codes for mrna. The mrna codes for amino acid and proteins are made of amino acids. In response to the gene, a gene is a basically a small part of dna in a certain order that codes for specific traits
