It might also be an important cause of hip osteoarthritis (OA). Therefore in this study we evaluated the frequency of cam-type FAI in axial spondyloarthritis (axSpA) patients as a potential alternative cause of hip or trochanteric pain.
Chromosomes are made from DNA. Genes are short sections of DNA. Genetically identical cells are produced by a type of cell division called mitosis. In sexual reproduction, a male gamete fuses with a female gamete to produce a new cell. This is called fertilisation. Gametes are produced by a type of cell division called meiosis.
Such stretches of DNA, which get transcribed into RNA but not translated into protein, are called introns. Those stretches of DNA that do code for amino acids in the protein are called exons. Examples: 1  The gene for one type of collagen found in chickens is split into 52 separate exons. Step-by-step removal of introns present in the pre-mRNA and splicing of the remaining exons. 2  This step takes place as the pre-mRNA continues to emerge from Pol II. 3  Synthesis of the poly(A) tail. 4  This is a stretch of adenine (A) nucleotides.