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Download Mutations and Genetics Test Review 1. What percentage of human
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Mutations and Genetics Test Review 1. What percentage of human sperm cells carry an X chromosome? a. 0% b. 25% c. 50% d. 100% 2. Sex-linked genes are located on a. the autosomal chromosomes. b. the X chromosome only. c. the Y chromosome only. d. both the X chromosome and the Y chromosome. 3. Certain drugs can be used in plant breeding to make polyploid plants. These drugs a. change the number of sets of chromosomes found in cells. b. change eukaryotic plants into prokaryotic plants. c. frequently cause mutations, which create new alleles and genes. d. insert foreign DNA into plant chromosomes. 4. Which of the following would require the use of recombinant DNA? a. Crossing two apple trees to create better apples. b. Breeding a donkey and a horse to make a mule. c. Engineering bacteria that produce human insulin. d. Creating a polyploid banana tree. 5. One reason farmers often choose GM crops over non-GM crops because GM crops are a. much safer. b. more productive. c. less expensive. d. less controversial.