Answer: The shape of a DNA molecule is called a double helix, which looks like a twisting ladder. The "rungs" are made from four nitrogenous bases: adenine, thymine, guanine and cytosine. Sugars and phosphate groups are also part of the structure.
Answer:
Angioplasty
Explanation:
Angioplasty is a technique of mechanically widening narrowed or blocked blood vessels. In angioplasty the doctors insert a deflated balloon in the narrowed vessel and then inflate it to fixed size. Thats why it is also known as baloon angioplasty.
Balloon push the walls of vessels for increases blood flow. Sometime a stent is also inserted immediately after angioplasty to ensure that blood flow remain intact and balloon is removed by deflating it.
Angioplasty may of several types depending upon the blood vessels it open such as coronary angioplasty, peripheral angioplasty and renal angioplasty.
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Answer: blood plasma concentration
Explanation: The IV solution most similar to blood plasma concentration, it is the fluid of choice for burn and trauma patients. It used for acute blood loss; hypovolemia from third-space fluid shifts; electrolyte imbalance; and metabolic acidosis.