What is unique about stem cells? Select one: a. Can differentiate into a variety
ID: 99633 • Letter: W
Question
What is 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 depicted 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 novel gene is expressed in an 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 cellsExplanation / Answer
Ans.11.) “d”
(Stem cells are specialized cell which have the ability to divide in different cells throughout their life.)
12.) “d”
(During the interphase, the cell’s metabolic activity is elevated which results in chromosome duplication and growth of the cell size.)
13.) “b”
During the anaphase, chromatids of each chromosome are separated and the resulting daughter chromosomes movse towards the poles.)
14.) “c”
(When gene or piece of gene is from one organism is inserted into other organism and it expressed the novel gene, such organism with new genetic composition is called as transgenic.)
15.) “d”
(Mitosis do not involved in production of gametes. Gametes are produced by meiosis.)
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