Can you please check if my part on science is grammatically correct? Thank you very much, Writeacher.

1) In 1951 an American woman descended from African slaves freed named Henrietta Lacks, was admitted to Johns Hopkins Hospital in Baltimore.
2) In those years, scientists had been unsuccessfully trying to grow malignant human cells outside the to determine what caused cancer and ultimately how to cure it.
3) The doctors diagnosed Lacks with stage I epidermoid carcinoma of the cervix, which would require her to have radiation treatments a few times a month. During her first two-night stay in the hospital, doctors sliced several pieces of tissue from her cancerous tumor and placed them in a dish in the hopes of growing and studying them.
4)Neither Lacks nor her family gave permission for her cells to be taken. Most cells died quickly in the lab, and the few that did survive failed to grow. Her cancer cells, however, grew doubling in number every 24 hours.
5) The doctors realized that these cells had some unique features never seen before. First, these cells had an altered set of chromosomes; they possessed more than eighty chromosomes for the presence of an abnormal number of pairs of chromosomes 12, 6, 8, and 17.
6) The peculiarity of this cell line, named HeLa to avod using Lacks’s name, is due to the fact that the papillomavirus, the pathogen responsible for the majority of cervical cancers, induced a mutation in the gene encoding the telomerase, the enzyme responsible for telomere elongation.

Although I am not Writeacher, I hope this helps.

1) In 1951 (COMMA) Henrietta Lacks, an American woman descended from FREED African slaves (COMMA) was admitted to Johns Hopkins Hospital in Baltimore.

2) In those years, scientists had been unsuccessfully trying to grow malignant human cells outside the (WHAT?) to determine what caused cancer and ultimately how to cure it.

3) The doctors diagnosed Lacks with stage I epidermoid carcinoma of the cervix, which would require her to have radiation treatments a few times a month. During her first two-night stay in the hospital, doctors sliced several pieces of tissue from her cancerous tumor and placed them in a dish in the HOPE of growing and studying them.

4) Neither Lacks nor her family gave permission for her cells to be taken. Most cells died quickly in the lab, and the few that did survive failed to grow. However, her cancer cells grew (COMMA) doubling in number every 24 hours.

5) The doctors realized that these cells had some unique features never seen before. First, these cells had an altered set of chromosomes; they possessed more than eighty chromosomes for the presence of an abnormal number of pairs of chromosomes 12, 6, 8, and 17. (GOOD!)

6) The peculiarity of this cell line, named HeLa to avod using Lacks’s name, is due to the fact that the papillomavirus, the pathogen responsible for the majority of cervical cancers, induced a mutation in the gene encoding the telomerase, the enzyme responsible for telomere elongation. (GOOD!)

1) In 1951, an American woman named Henrietta Lacks, who was descended from freed African slaves, was admitted to Johns Hopkins Hospital in Baltimore.

2) During those years, scientists had been unsuccessfully attempting to grow malignant human cells outside of the body in order to determine the cause of cancer and ultimately find a cure for it.

3) The doctors diagnosed Lacks with stage I epidermoid carcinoma of the cervix, which required her to undergo radiation treatments a few times a month. During her first two-night stay in the hospital, doctors took several pieces of tissue from her cancerous tumor and placed them in a dish with the hope of growing and studying them.

4) Neither Lacks nor her family granted permission for her cells to be taken. Most cells in the lab died quickly, and the few that did survive failed to grow. However, her cancer cells were able to grow and multiply, doubling in number every 24 hours.

5) The doctors realized that these cells had some unique features that had never been seen before. Firstly, they had an altered set of chromosomes, possessing more than eighty chromosomes due to an abnormal number of pairs of chromosomes 12, 6, 8, and 17.

6) The peculiarity of this cell line, named HeLa to avoid using Lacks's name, is attributed to the fact that the papillomavirus, the pathogen responsible for the majority of cervical cancers, induced a mutation in the gene that encodes the telomerase enzyme responsible for telomere elongation.

Note: While I can assist with grammar and provide suggested corrections, please keep in mind that I am an AI language model and may not catch every error. It's always a good idea to have a human proofread your work for accuracy and style.