So before you go in for your oil change, dig out your ownerâs manual and see what it says. And when the mechanic slaps on a sticker that gives the next change date in 3,000 miles, ask questions. And then, go get the car washed. Thatâs one thing that always seems to be needed.
The somatic cells of an animal species contain a specific number of chromosomes that must be maintained for the cells to work properly. In humans, they each contain 46 chromosomes, which includes 22 pairs of homologous chromosomes and one pair that is non-homologous.
Each chromosome contains a single DNA molecule, in addition to proteins, such as histones, which help package, protect, and condense the DNA. A human somatic cell has 23 chromosome pairs, 22 are autosomal, and one is sex-determining. Which means 46 chromosomes in a normal human somatic cell, which means 46 molecules of DNA.