How did the development of the hela cell line affect society?

a. it resulted in patient consent being required for tissues to be used in research.
b. it led to the production of the most widely studied mortal cell line in the world.
c. it prevented the collection of other human cell types for research.
d. it caused the contamination and destruction of other immortal cell lines.

A. It resulted in patient consent being required for tissues to be used in research.

Explanation:

HeLa cells are the human cervical cancer cells and are the immortal cell lines used to develop the chemotherapy treatment against cancer and to test drug and check their possible effects on human beings. HeLa cells have served to make the people aware about the issues of privacy. It resulted in patient consent being required for tissues to be used in research.

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: