So having high blood sugar doesnât mean that you ate a lot of table sugar and the sugar is now in your bloodstream; it means you ate a lot of carbohydrates (from any source) and the sugar (glucose) is now in your bloodstream. Any digestible carbohydrate can raise blood sugar, although some raise it higher and faster than others.
If a mutation alters junk DNA, it doesnât do any harm because the junk isnât doing us any good to begin with. If our genome was 80 percent functionalâthe figure batted around when the ENCODE project results first came outâthen we should be extinct.
Chromosomes. 1  Some animals have lots of chromosomes, but much of the DNA is blank. This blank DNA is called junk DNA.. 2  Nearly every cell in your body carries a complete set of chromosomes. 3  Some chromosomes are longer than others because they contain more DNA. 4  Humans have about 30,000 genes in their 46 chromosomes.