Which of the following statements about iPS cells is false?
(a) iPS cells are created by adding a combination of transcription regulators to a fibroblast.
(b) iPS cells created from mouse cells can differentiate into almost any human cell type.
(c) Stimulation by extracellular signal molecules causes iPS cells to differentiate.
(d) During the de-differentiation process to become an iPS, the fibroblast will undergo changes to its gene expression profile.
(b) When iPS cells differentiate, the cells follow a program dictated by their genome. Thus, mouse cells can only differentiate into mouse cells and cannot become human cells.
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A protein is made up of
(a) amino acid units. (b) one or more sugar units. (c) lipid droplets. (d) Biuret solution.
As a bicyclist pedals up a hill to the finish line of a race and "feels the burn" in his leg muscles, those muscle cells are most likely utilizing
A) only oxygen for maximum ATP production. B) some lactate fermentation and lactic starting to build up in his muscle tissue causing a cramp. C) only cellular respiration for maximum ATP production. D) both cellular respiration and oxygen for maximum ATP production.
Answer the question using the accompanying figure. Rapid population growth is represented by the letter ____
a. A b. B c. C d. D
e. EBioremediation is _____.
A.) the use of biological processes to remedy diseases B.) the use of prokaryotes in producing pharmaceutical products C.) the use of organisms to remove pollutants from the environment D.) the modification of prokaryotes for industrial purposes E.) the use of prokaryotes in producing transgenic organisms