In John Gurdon's nuclear-transfer experiments, he used nuclei from tadpole intestinal cells. Do you think he would have had more success or less success if he had taken cells from a blastula? From an adult frog? Please briefly justify your answers

In your opinion, was it unethical for researchers to take Henrietta Lacks' cells without her permission? Why or why not? Do you think it is unethical that biotech/pharmaceutical companies are currently profitting from Henrietta Lacks' cells? Why or why not?

"In most animal cells, minus end-directed microtubule motors deliver their cargo to the periphery of the cell, whereas plus end-directed microtubule motors deliver their cargo to the interior of the cell", is true or false.

If a percent difference is a positive number, what does this tell us about the change in weight of the artificial cell?

Answer choices: 1) a cell with two complete sets of chromosomes  2) a chromosome pair, one maternal and one paternal 3) the events that occur from the time a cell forms until the time it divides 4) time of cell growth 5) cell division that maintains chromosome number 6) a reproductive mode by which offspring are produced by one parent only 7) an exact copy of a chromosome

Please help me answer questions Part IV- 1, 3, 4 Thank you, Heres a link to the PDF https://www.cusd80.com/cms/lib/AZ01001175/Centricity/Domain/8922/eofad.pdf

A lab trainer instructed a new lab recruit to freeze down cells from a tissue culture flask to save for future use. After verifying that the flask of adherent cells was confluent, and contained enough cells to freeze down, the lab trainer left the recruit to go through the freezedown protocol. A few days later, the trainer thawed out the cryovials of cells that the recruit put away, and discovered that there were very few viable cells. Assuming that the lab trainer did everything correctly, answer the following: What are two possible mistakes made that explains why there are so few cells? Explain why those mistakes had the effect they did.

Your friend can't understand how it is possible to combine a somatic cell from their pet with an oocyte from a different animal and create a clone of their pet. Won't the animal that develops be the offspring of the two animals rather than a clone of the animal that donated the somatic cell? Explain to your friend why this is not the case.