Question

Scientists cultured and used Henrietta Lacks' HeLa cells to conduct research. The cells were also used to determine the effectiveness of treatment for certain diseases. However, normal cells may also be grown in a laboratory setting. An illustration of normal cells are growing in a petri dish is shown below.
Which of the following is NOT reflected by this illustration and cell division of normal cells?

Group of answer choices

When cells come into contact with other cells, they stop growing.

The controls on cell growth and division can be turned on and off.

Cell division can be regulated by factors outside the cell.

Cells growth is random and uncontrolled.

Answer 1

Answer:

Lacks's cells survived, thrived, and multiplied outside her body, so much ... In the Lab ... But their use has raised challenging issues about medical samples taken ... Years later, scientists used that knowledge to develop HPV vaccines, ... Morin hypothesized that this enzyme, found in cancer cells, was also ...

Explanation: