Sample Test 2

Sample Test 2 - 1 Biology 101 Test II DeSaix Name Print...

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Biology 101 –– Test II- DeSaix February 25, 2010 Name_____________________________ Print your name, last name first, and your PID number legibly on your answer sheet. Each answer is worth 2 points. Always choose one best answer and use only number 2 pencils to fill in your answers. Be sure to sign the pledge on your answer sheet. The last question will be used only if another question has to be deleted. Turn in your answer sheet in alphabetical order at the front of the room. Write down your answers on this copy to check against the key so that you will know what you have missed. The key will be posted on the blackboard website. ___1. Which of the following terms refers to the situation where a single phenotypic characteristic is determined by the additive effects of genes at two or more loci? A. incomplete dominance, B. codominance, C. pleiotropy, D. polygenic inheritance, E. blending inheritance. ___2. Genes located close together on the same chromosomes are referred to as ___ and generally ___. A. associated. ..sort independently during meiosis, B. linked. ..sort independently during meiosis, C. homologous. ..are inherited together, D. linked. not sort independently during meiosis, E. codependent. not sort independently during meiosis. ___3. The work of Griffith indicated that: A. harmful strains of bacteria can mutate to become harmless B. bacteria mutate more frequently than most prokaryotes. C. harmless bacteria may be transformed in the presence of killed harmful bacteria. D. bacteria inject their nucleic acids into viruses causing transformation. E. bacteria can be labeled using P32. ___4. Hershey and Chase worked with: A. virulent and non-virulent bacteria; B. Bacteria that infect viruses; C. virus protein coat and nucleic acid core; D. jumping genes; E. X-ray diffraction images of DNA. ___5. Which of the following could not be used in the production of different enzymes: A. a particular messenger RNA; B. a particular transfer RNA; C. a particular ribosomal RNA; D. a particular amino acid; E. a particular nucleotide. ___6. What evidence shows that genes specify amino acid sequences in proteins? A. DNA is transcribed into a mRNA molecule. B. tRNA molecules have an amino acid attached to one end. C. Ribosomes contain RNA. D. A change in the base sequence of a gene changes the amino acid sequence of a protein. E. None of the above. ___7. Protein Synthesis occurs: A. only in the nucleus, B. only in cells making enzymes, C. only in the digestive system, D. in the cytoplasm of most (probably all) cells, E. only in eukaryotes. ___8. Homologous chromosomes separate from one another during ___ of meiosis: A) Prophase I B) Prophase II C) Anaphase I D) Anaphase II E) Telophase II. __A_9.
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Sample Test 2 - 1 Biology 101 Test II DeSaix Name Print...

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