NAD + is a coenzyme that plays a crucial role in cellular metabolism. It consists of an adenine nucleotide joined to a nicotinamide nucleotide. NAD + acts as an electron carrier in redox reactions, ...

All of the information needed to build and maintain an organism — whether it's a human, a dog, or a bacterial cell — is contained in its DNA. DNA molecules are composed of four nucleotides ...

In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine (Figure 3). This means that during elongation, the presence of adenine in the DNA template ...