Rickets is a childhood disease that is associated with a vitamin deficiency. According to the Family Doctor website, rickets is a disorder that affects a child's bones, causing them to become soft and fracture easily.Rickets is caused by a lack of vitamin D, although heredity can also play a role in this disease.ist of Vitamin Deficiency Diseases. Numerous diseases are associated with vitamin deficiency. Photo Credit the sad girl image by Yuriy Poznukhov from Fotolia.com. Numerous diseases are associated with vitamin deficiency.
If police could quickly test the suspectsâ DNA, to see if their genetic material matches entries in crime databases, they may be able to keep the most dangerous people locked up. But currently, most genetic tests take 24-72 hours, and by the time that the results are back, the suspects often have been released.
PCR (polymerase chain reaction) is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA.PCR is used to reproduce (amplify) selected sections of DNA or RNA.Previously, amplification of DNA involved cloning the segments of interest into vectors for expression in bacteria, and took weeks. But now, with PCR done in test tubes, it takes only a few hours.PCR is highly efficient in that untold numbers of copies can be made of the DNA.reviously, amplification of DNA involved cloning the segments of interest into vectors for expression in bacteria, and took weeks. But now, with PCR done in test tubes, it takes only a few hours. PCR is highly efficient in that untold numbers of copies can be made of the DNA.