DNA is a chain of nucleotides bonded together. On that chain there are particular portions of it that the sequence of the nucleotide codes for particular proteins; this is known as a gene. In eukaryotric cells, DNA is coiled around proteins such as histones to form chromatids which when two join at the centre by a centromere to form a chromosome.
What role do its contents play in the cell<span>? The </span>Nucleus contains<span> DNA, which is structured in the form of genes on chromosomes. Genes provide the information for the </span>cell<span> to carry out </span>its<span> functions.</span>
Parasympathetic nerves govern involuntary actions such as pupil dilation, peristalsis, gland secretions, etc.
Mostly, it would be social scientists however, some biologist could also explain these behavioral characteristics and temperaments like geneticists and cognitive scientists.
Variables and factors like the biological, environmental and evolutionary component of how a trait is unearth by these experts.