NAD+ is the abbreviated symbol for Nicotinamide Adenine Dinucleotide. It is a coenzyme present in biological systems. NAD+ is involved in the metabolism specifically in redox reactions. It accepts electrons from other molecules and become reduced.
NADH is the reduced form of NAD+. Similar to NAD+, NADH also participates in metabolic processes when reduction is necessary. When NADH reduces a compound, it gets oxidized to NAD+.
The second option is the best answer.
Proteins are complex polymers of amino acids. They are folded into 3 dimensional structures . This folding defines not only the size and shape of the protein, but also its function.
The folding of a protein allows for interactions between amino acids that may be distant from each other in the primary sequence of the protein. In enzymes, some of these amino acids form a site in the structure that catalyzes the enzymatic reaction. This site is called the active site.
Compounds are <span>Anything made by combining several things. 2 or more separate elements.
Mixtures are </span>Something produced by mixing. Something that consists of diverse elements
The answer is B because crossing over allow for variety in the genes and independent assortment allows for allele in the gametes to get sorted independently
1. C. prey-predator
2. A. competition between lizards and frogs for food
