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5 Written questions

5 Matching questions

  1. 4.C.2.
  2. 3.B.2
  3. 3.D.4.
  4. 3.B.1
  5. 3.E.1.
  1. a A variety of intercellular and intracellular signal transmissions mediate gene expression.
  2. b Environmental factors influence the expression of the genotype in an organism.
  3. c Organisms exchange information with each other in response to internal changes and external cues, which may change behavior.
  4. d Cells can be activated, produce new products, and retain their activated state through gene regulation
  5. e Errors in normal signal transduction may alter cellular response.

5 Multiple choice questions

  1. Cells communicate with each other through direct contact with other cells or from a distance via chemical signaling.
  2. Variation in molecular units provides cells with a wider range of functions.
  3. Positive feedback mechanisms amplify responses and processes in biological organisms.
  4. Organisms constantly respond to changes in their external environments.
  5. Cell communication involves processes resulting from evolution that are shared common features.

5 True/False questions

  1. 3.C.3Biological systems possess multiple mechanisms that increase genetic variation.

          

  2. 3.A.2In most eukaryotes, heritable information is passed to the next generation through mitosis or meiosis plus fertilization.

          

  3. 4.A.2.Environmental factors influence the expression of the genotype in an organism.

          

  4. 3.A.1DNA, and in some cases RNA, is the primary source of heritable information.

          

  5. 2.B.2.Interactions between cells affect the fitness of the organism.

          

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