What are two central ideas developed in the article?
20 points
a. The identification of Henrietta Lacks as the source of HeLa tissue samples prompted the scientific community to reexamine its practice of acquiring human biological tissue samples.
b. The issues raised by using human biological tissue samples show that the practice, though valuable to scientific research, raises many ethical and practical concerns.
c. The complicated science of research using human biological tissue samples disregards the privacy concerns of donors.
d. Profits from the distribution of HeLa tissue samples should have been shared with the descendants of Henrietta Lacks.
e. The Lacks family became involved in a series of events involving the use of Henrietta's tissue samples which resulted in groundbreaking scientific research but unfortunate consequences for them.
f. All modern vaccines are developed using human biological tissue samples, so the practice is essential to modern medicine.
g. "The real story is much more subtle and complicated." (paragraph 12)