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Please answer the following questions What is the unique about stem cells? Selec

ID: 99653 • Letter: P

Question

Please answer the following questions

What is the unique about stem cells? Select one: a. Can differentiate into a variety of different cell types b. Some retain their ability to divide throughout the entire life of an organism c. Can differentiate only to a single cell type d. A and B e. B and C What occurs during interphase of a cell cycle? Select one: a. Chromatids separate from each other b. Cell grows in size c. Chromosomes duplicate d. B and C e. Nothing happens it is considered the resting stage of the cell cycle What phase of mitosis is duplicated when a cell's chromatids have separated and are moving towards the poles? Select one: a. metaphase b. anaphase c. prophase d. telophase e. interphase When genes or pieces of genes from different species are combined and the noval gene is expressed in a organism, what do we call this organism? Select one: a. Clone b. Miracle c. Transgenic d. Mutant e. Super duper which of the following is NOT a function of mitosis in a multicellular organism? Select one: a. growth of a fertilized egg into an embryo b. replacement of damaged cells c. maintenance of tissues d. production of gametes e. replacement of dead cells

Explanation / Answer

11.d.Stem cells can differentiate into variety of cell types and these reatin their ability to divide throughout the entire life of an organism.

12.The interval in the cell cycle between two cell divisions when the individual chromosomes cannot be distinguished, interphase was once thought to be theresting phase but it is far from a time of rest for the cell. It is the time when DNA is replicated in the cell nucleus.

13.b.Anaphase is the  third stage of cell division, between metaphase and telophase, during which the chromosomes move away from one another to opposite poles of the spindle.

14.c.Transgenic is an organism that contains genetic material into which DNA from an unrelated organism has been artificially introduced.

15.d.Production of gametes occurs during meiosis and not mitosis.