chapter 1 Indicate the answer choice that best completes the statement or answers the question. 1. A sample of normal double-stranded DNA was found to have a guanine content of 18%. What is the expected proportion of adenine? a. 9% b. 32% c. 36% d. 68% e. 82% 2. Using molecular techniques, researchers have knocked out both copies of gene G in a series of genetically identical mouse embryos. These mice develop normally, except for their forelimbs, which are missing several small bones. What can be concluded from the results of this experiment? a. Gene G encodes a protein that is a crucial component of the forelimbs' small bones in mice. b. Gene G encodes a protein that is normally only present in the forelimb cells of developing mice. c. Gene G is necessary for proper development of the forelimbs' small bones in mice. d. Gene G is normally only present in the forelimb cells of developing mice. e. Gene G is normally only transcribed in the forelimb cells of developing mice. 3. Which of the following is a component of DNA? a. alanine b. arginine c. cysteine d. guanine e. tyrosine 4. The Central Dogma describes a. the hypothesis of how DNA is packaged into small molecules. b. the process by which RNA is processed within a cell. c. the flow of genetic information within cells from DNA to RNA to p