The genetic disorder that is related with the lack of an enzyme that is necessary for the normal metabolism of phenylalanine is called Phenylketonuria. This happens in babies where they do are not able to break down phenylalanine in the body.
Hi! Your answer here is C. Being active and improving health leads to better sleep. Exercise tires you out, and the more active you are, the more your body pushes you to sleep at night.
The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes
Because carbon atoms can form stable bonds with four other atoms, they are uniquely suited for the construction of complex molecules. These complex molecules are typically made up of chains and rings that contain hydrogen, oxygen, and nitrogen atoms, as well as carbon atoms.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
The gene is the basic physical and functional unit of heredity. It consists of a specific sequence of nucleotides at a given position on a given chromosome that codes for a specific protein (or, in some cases, an RNA molecule).
