Question

1. how do hela cells keep dividing while other cells die off? *

hela ignore signals to stop dividing
hela ignore mutations that accumulate over generations
hela avoids apoptosis
all of the above

1. what major medical problem did hela cells help solve in the early 1950s?

testing treatments for diabetes
producing enough polio virus to help develop and test the polio vaccine
discovering antibiotics to treat tuberculosis
creating the first organ transplant procedure

1. later on, research with hela cells lead to a vaccine for ____, which likely caused henrietta’s cancer.

Explanation:

Question 4:

HeLa cells are immortal cancer cells. They ignore contact inhibition (signals to stop dividing), accumulate mutations without halting division, and avoid apoptosis (programmed cell death), so all listed traits allow them to keep dividing.

Question 5:

In the early 1950s, HeLa cells were critical for large-scale production of poliovirus, which enabled the development and testing of the polio vaccine, a major medical breakthrough.

Question 6:

Henrietta Lacks' cervical cancer was caused by human papillomavirus (HPV). Later research using HeLa cells contributed to the development of the HPV vaccine.

Answer:

1. All of the above
2. Producing enough polio virus to help develop and test the polio vaccine
3. HPV