Answer:
HeLa cells contain rare traits that make them invaluable to scientific research. Research into the Lacks family may provide insight into this mutation and cell proliferation.
Explanation:
HeLa cells have a controversial origin, rooted in ethical breaches. They were derived from a non-consenting, female African-American donor patient, Henrietta Lacks who was terminally ill with a form of cervical cancer. These particular cells have a remarkably short period of proliferation, due to their active telomerase.
During cell division, these telomoerases were found to make repeat copies of the cell's telomere, and the cells can divide an unlimited number of times in lab cell cultures- a very rare occurrence. They were later commercialized- HeLa cells are durable, robust and commonly used in cancer cell research.
Answer:Isocitrate is oxidized and decarboxylation occurs with a carbon dioxide molecule released.
Explanation:
The nurse should explain that myelosuppression is a common side effect of cancer treatments. The healthcare provider should explain to the patient that it is better to reduce or stall the treatment for a while because it would be more harmful to them if they continued.
Answer:
Spermatogenesis is stimulated by FSH acting on sertoli cells.
Explanation:
Spermatogenesis is the process by which spermatozoa grow and develop from germ cells into mature form. There are many hormones that are involved in this process and one of them is FSH (Follicle Stimulating Hormone). Another factor that play a vital role in the process are sertoli cells.
The FSH stimulates sertoli cells to release androgen-binding protein into the lumen portion of seminiferous tubules. The sertoli cells are the epithelial supporting cells that are located inside the seminiferous tubules. The sertoli cells are responsible for keeping the germ cells nourished and for extracting excess cytoplasm from newly formed spermatozoa cells just before they are released into the lumen of the seminiferous tublules.
