What two types of macromolecules are the main components of myelin? A. carbohydrates and lipids B. proteins and nucleic acids C. phospholipids and proteins D. carbohydrates and nucleic acids E. water and proteins

Option C.

Explanation:

Myelin are insulating layer or sheath that surrounds axonal part of neurons of the brain and spinal cord . Myelin surrond nerve cells or neurons.

It contain protein and fatty substances. It is Rich in lipids which help in propagation of nerve impulses. The insulation improved the efficiency of signal transduction along the nerves cell.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.

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