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TEKS Biology High School - B.5.C: Cell Differentiation
Quiz by TEKS Biology High School
High School - Biology
Science (2010)
Texas Essential Knowledge and Skills (TEKS)
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5 questions
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- Q1From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop?Each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervalsEach cell type has only one chromosome containing the DNA needed for that cell typeEach cell type contains only the active parts of the DNA needed for that cell typeEach cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells30sB.5.C: Cell Differentiation
- Q2As a fertilized egg divides, the cells differentiate because they —metabolize sugars rapidlycontain a lipid bilayerhave specific genes activatedcan clump together30sB.5.C: Cell Differentiation
- Q3Researchers Robert Briggs and Thomas King used ultraviolet radiation to destroy the nuclear DNA of frog eggs. Nuclei from adult skin cells and from tadpole-gut epithelial cells were cultured and then injected into eggs that had their nuclei destroyed. The results were tadpoles. Which conclusion is supported by the data from this investigation?The transplanted DNA mutated during culturingThe DNA information for development was silenced in differentiated cellsThe transplanted DNA functioned as the original nuclear DNA of the egg cell would haveThe DNA from skin cells and epithelial cells was not transcribed30sB.5.C: Cell Differentiation
- Q4Cell differentiation is critical during embryonic development. The process of cell differentiation results in the production of many types of cells, including germ, somatic, and stem cells. Cell differentiation is most directly regulated by —ATPlipidssugarsDNA30sB.5.C: Cell Differentiation
- Q5What is the role of mRNA in expressing specialized structures?Providing information to form proteinsCreating bonds to form biomoleculesMaking energy available for cellular activities60sB.5.C: Cell Differentiation