Therefore, whenever a ddNTP is added to a growing DNA strand, it is unable to chemically bind with the next nucleotide in the chain, and the DNA strand stops growing. Figure 3: By adding together information about all of the truncated strands, researchers can determine the nucleotide sequence of the DNA target.
Functions of the Bladder. Temporary store of urine â The bladder is a hollow organ. The walls are very distensible, with a folded internal lining (known as rugae), this allows it to hold up to 600ml. Assists in the expulsion of urine â During voiding, the musculature of the bladder contracts, and the sphincters relax.
The bladder is the final internal destination for urine that has been collected and concentrated by the kidney and transported via the ureters â one for each kidney. The urinary bladder; like the design of many other internal surfaces of your body, like the small intestine and the stomach is lined with folds of tissue. In the stomach and bladder, these folds are called rugae and they stretch and flatten in response to increased pressure â if you have just eaten a big meal or havenât urinated in a long time.