1 Muscle weakness and Pain in the joints and Sudden onset of joint pain and Arthritis-like symptoms (3 causes) 2  Muscle weakness and Pain in the joints and Sudden onset of joint pain and Body symptoms (3 causes)  Muscle weakness and Pain in the joints and Sudden onset of joint pain and Bony abnormalities (3 causes)
The other two chromosomes, X and Y, are the sex chromosomes. This picture of the human chromosomes lined up in pairs is called a karyotype. In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
There are 46 total chromosomes in a normal human body cell. They pair up, creating 23 pairs of chromosomes. Mutations can occur during cell division, causing human cells to have a varied amount of chromosomes-more or less. There are many genetic diseases caused by chromosomal mutations.