Os acetabuli and mixed-type FAI. This 79yo male with a history of right hip pain for 1 month has features of both pincer and cam-type FAI. Femoral head asphericity (yellow arrow), irregular anterosuperior bump (green arrowheads), os acetabuli (yellow arrowhead) and hypertrophic acetabular rim (blue arrow).
1 The other 22 pairs are autosomes (non-sex chromosomes) and look the same for both males and females. 2  The DNA making up each of our chromosomes contains thousands of genes. 3  At the ends of each of our chromosomes are sections of DNA called telomeres.
sections of DNA in the chromosome that carry the information for the traits of an organism such as hair color, eye color, height, etc. Genes, like the chromosomes they make up, are in pairs. One half of the pair comes from one parent and one half from the other parent and are joined into pairs when the sperm fertilizes the egg during reproduction. Each member of a pair of genes is called an allele.