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.
DNA folds into paired packages called Chromosomes. These are stored in the nucleus of the cell. Different species have different numbers of chromosones, humans (both male and female) have 23. Chromosomes contain lots of genes, a gene is a section of DNA that holds the instructions for a protein.Proteins are the building blocks of life, they perform a huge variety of jobs from controlling a cell's functioning to determining the shape of a whole organism.NA (Deoxyribonucleic Acid) is the 'instruction manual' of how to build life. DNA defines everything, from microbes to plants to humans. DNA is what determines your appearence, such as facial features, hair colour and height.