Source: http://www.dnalc.org/resources/3d/07-how-dna-is-packaged-basic.html
Each chromosome consists of one continuous thread-like molecule of DNA coiled tightly around proteins
STUDIED WITH ME AND THE BIOLOGY TEACHER: Transcript: In this animation we'll see the remarkable way our DNA is tightly packed up so that six feet of this long molecule fits into the microscopic nucleus of every cell. The process starts when DNA is wrapped around special protein molecules called histones. The combined loop of DNA and protein is called a nucleosome. Next the nucleosomes are packaged into a thread, which is sometimes described as "beads on a string". The end result is a fiber known as chromatin. Now the chromatin fiber is coiled into a structure called a "solenoid". This fiber is then looped and coiled yet again, leading finally to the familiar shapes known as chromosomes, which can be seen in the nucleus of dividing cells. Chromosomes are not always present. They form around the time cells divide when the two copies of the cell's DNA need to be separated. At other times, as we can see now after the cell has divided, our DNA is less highly organized. It is still wrapped up around the histones, but not coiled into chromosomes.
Human Beings...Living Together
We are not all of one mind*...and that is good. Because we are different, with varying views of the world, we add to our capability for growth, development, the very success of our species. Were we the same, with fewer new ideas and less imagining of possibilities, we would stagnate. Success for human beings is both to survive and to improve. (*mind: esprit, varying: variant, add to: ajouter, growth: croissance, le fait de grandir, le développement, a species: une espèce, fewer: moins de, stagnate: ne pas progresser, both: les deux, improve: améliorer )
They are all the same...
No matter their language, religion, customs, race (ethnicity), or environment, all human beings have the exact same feelings. Happiness/sadness; hope/despair; trust/wariness; pride/shame: these feelings are common to all of them. The causes for these feelings may differ, but the feelings themselves are identical.
Just as the senses process information the same way for all humans and the body carries out the same physical processes, the brain initiates their thoughts and emotions the same way.
Human beings, then, all have the same basic parts, processes, and emotions. Variations do occur (for example, a human born with six fingers on one hand; another may be extremely smart; another may have no compassion), but more than anything else, these variations confirm the fundamental characteristics common to all humans.
...Yet they are all different.
Because each individual is different, each has a different view of the world, a different perspective. They each live in the same world, using the same basic senses with the same basic feelings. This can help them to mutual understanding. But seeing it is same world in different ways can lead to mutual misunderstanding/disagreement.
It is important to note our similarities, but perhaps more important to note our differences. These are what we most often kill each other over.
== this is why we kill each other.
From birth, every human gathers a great variety of information about the world. And this information will be different from that gathered by every other human because two individuals can see, hear, smell, taste, touch the same thing and yet describe it differently.
