Which of the following is true about cells? a. cells have specialized components that perform different, specific functions. b. a cell's components are all identical and perform the same function. c. a cell has a single component that performs all of the cell's different, specific functions. d. cells have specialized components that all perform the same functions.

C.  A cell has a single component that performs all of the cell's different, specific functions.

Explanation:

We are well familiar with several organelles of the cell that are specialized to perform important tasks in a coordinated fashion.These organelles include Mitochondria which provides energy to the cell and is called powerhouse of cell, Golgi apparatus which is concerned with the packaging and transport of proteins,  Chloroplast which is involved in the synthesis of food through photosynthesis etc. Hence, several components are present and all have their own roles. You can see attached image of a cell for better understanding.

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the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: